NI RFmx SpecAn Advanced Functions
- RFmxSpecAn_AnalyzeIQ1Waveform
- RFmxSpecAn_AnalyzeSpectrum1Waveform
- RFmxSpecAn_AbortMeasurements
- RFmxSpecAn_CreateSignalConfiguration
- RFmxSpecAn_CloneSignalConfiguration
- RFmxSpecAn_DeleteSignalConfiguration
- RFmxSpecAn_GetAllNamedResultNames
- RFmxSpecAn_ClearNamedResult
- RFmxSpecAn_ClearAllNamedResults
- RFmxSpecAn_ClearNoiseCalibrationDatabase
int32 __stdcall RFmxSpecAn_AnalyzeIQ1Waveform (niRFmxInstrHandle instrumentHandle, char selectorString[], char resultName[], float64 x0, float64 dx, NIComplexSingle IQ[], int32 arraySize, int32 reset, int64 reserved);
Performs the enabled measurements on the I/Q complex waveform that you specify in the IQ parameter. Call this function after configuring the signal and measurement attributes. You can fetch measurement results using the Fetch functions or result attributes. Use this function only if the RFMXINSTR_ATTR_RECOMMENDED_ACQUISITION_TYPE) value is either RFMXINSTR_VAL_RECOMMENDED_ACQUISITION_TYPE_IQ or RFMXINSTR_VAL_RECOMMENDED_ACQUISITION_TYPE_IQ_OR_SPECTRAL.
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Note Query the RFMXINSTR_ATTR_RECOMMENDED_ACQUISITION_TYPE attribute after calling the RFmxSpecAn_Commit) function. |
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| Input | ||
|---|---|---|
| Name | Type | Description |
| instrumentHandle | niRFmxInstrHandle | Identifies the RFmx session. You can obtain this parameter from the RFmxSpecAn_Initialize) function. |
| selectorString | char[] | Comprises the signal name. If you do not specify the signal name, the default signal instance is used. Example: "" "signal::sig1" You can use the RFmxSpecAn_BuildSignalString) function to build the selector string). |
| resultName | char[] | Specifies the name to be associated with measurement results. Provide a unique name, such as "r1" to enable fetching of multiple measurement results and traces. This input accepts the result name with or without the "result::" prefix. Example: "" "result::r1" "r1" |
| x0 | float64 | Specifies the start time of the IQ array. This value is expressed in seconds. |
| dx | float64 | Specifies the time interval between the samples in the input IQ array. This value is expressed in seconds. The reciprocal of dx indicates the I/Q rate of the input signal. |
| IQ | NIComplexSingle[] | Specifies an array of complex-valued time domain data. The real and imaginary parts of this complex data array correspond to the in-phase (I) and quadrature-phase (Q) data, respectively. |
| arraySize | int32 | Specifies the number of elements in the IQ array. |
| reset | int32 | Resets measurement averaging. If you enable averaging, set this parameter to TRUE for the first record and FALSE for the subsequent records. |
| reserved | int64 | Reserved for future use. Any value passed to this parameter will be ignored. |
| Name | Type | Description |
|---|---|---|
| status | int32 | Returns the status code of this operation. The status code either indicates success or describes an error or warning condition. Examine the status code from each call to an RFmx function to determine if an error has occurred. To obtain a text description of the status code and additional information about the error condition, call the RFmxSpecAn_GetError) function. The general meaning of the status code is as follows: |
| Value | Meaning |
|---|---|
| 0 | Success |
| Positive Values | Warnings |
| Negative Values | Errors |
int32 __stdcall RFmxSpecAn_AnalyzeSpectrum1Waveform (niRFmxInstrHandle instrumentHandle, char selectorString[], char resultName[], float64 x0, float64 dx, float32 spectrum[], int32 arraySize, int32 reset, int64 reserved);
Performs the enabled measurements on the spectrum that you specify in the spectrum parameter. Call this function after configuring the signal and measurement attributes. You can fetch measurement results using the Fetch functions or result attributes. Use this function only if the RFMXINSTR_ATTR_RECOMMENDED_ACQUISITION_TYPE) value is either RFMXINSTR_VAL_RECOMMENDED_ACQUISITION_TYPE_SPECTRAL or RFMXINSTR_VAL_RECOMMENDED_ACQUISITION_TYPE_IQ_OR_SPECTRAL.
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Note Query the RFMXINSTR_ATTR_RECOMMENDED_ACQUISITION_TYPE attribute after calling the RFmxSpecAn_Commit) function. |
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| Input | ||
|---|---|---|
| Name | Type | Description |
| instrumentHandle | niRFmxInstrHandle | Identifies the RFmx session. You can obtain this parameter from the RFmxSpecAn_Initialize) function. |
| selectorString | char[] | Comprises the signal name. If you do not specify the signal name, the default signal instance is used. Example: "" "signal::sig1" You can use the RFmxSpecAn_BuildSignalString) function to build the selector string). |
| resultName | char[] | Specifies the name to be associated with measurement results. Provide a unique name, such as "r1" to enable fetching of multiple measurement results and traces. This input accepts the result name with or without the "result::" prefix. Example: "" "result::r1" "r1" |
| x0 | float64 | Specifies the start frequency of the spectrum. This value is expressed in Hz. |
| dx | float64 | Specifies the frequency interval between data points in the spectrum. |
| spectrum | float32[] | Specifies the real-value power spectrum. |
| arraySize | int32 | Specifies the number of elements in the spectrum array. |
| reset | int32 | Resets measurement averaging. If you enable averaging, set this parameter to TRUE for the first record and FALSE for the subsequent records. |
| reserved | int64 | Reserved for future use. Any value passed to this parameter will be ignored. |
| Name | Type | Description |
|---|---|---|
| status | int32 | Returns the status code of this operation. The status code either indicates success or describes an error or warning condition. Examine the status code from each call to an RFmx function to determine if an error has occurred. To obtain a text description of the status code and additional information about the error condition, call the RFmxSpecAn_GetError) function. The general meaning of the status code is as follows: |
| Value | Meaning |
|---|---|
| 0 | Success |
| Positive Values | Warnings |
| Negative Values | Errors |
int32 __stdcall RFmxSpecAn_AbortMeasurements (niRFmxInstrHandle instrumentHandle, char selectorString[]);
Stops acquisition and measurements associated with signal instance that you specify in the selectorString parameter, which were previously initiated by the RFmxSpecAn_Initiate) function or measurement Read functions. Calling this function is optional, unless you want to stop a measurement before it is complete. This function executes even if there is an incoming error.
| Input | ||
|---|---|---|
| Name | Type | Description |
| instrumentHandle | niRFmxInstrHandle | Identifies the RFmx session. You can obtain this parameter from the RFmxSpecAn_Initialize) function. |
| selectorString | char[] | Comprises the signal name. If you do not specify the signal name, the default signal instance is used. Example: "" "signal::sig1" You can use the RFmxSpecAn_BuildSignalString) function to build the selector string). |
| Name | Type | Description |
|---|---|---|
| status | int32 | Returns the status code of this operation. The status code either indicates success or describes an error or warning condition. Examine the status code from each call to an RFmx function to determine if an error has occurred. To obtain a text description of the status code and additional information about the error condition, call the RFmxSpecAn_GetError) function. The general meaning of the status code is as follows: |
| Value | Meaning |
|---|---|
| 0 | Success |
| Positive Values | Warnings |
| Negative Values | Errors |
int32 __stdcall RFmxSpecAn_CreateSignalConfiguration (niRFmxInstrHandle instrumentHandle, char signalName[]);
Creates a new instance of a signal.
| Input | ||
|---|---|---|
| Name | Type | Description |
| instrumentHandle | niRFmxInstrHandle | Identifies the RFmx session. You can obtain this parameter from the RFmxSpecAn_Initialize) function. |
| signalName | char[] | Specifies the name of the signal. This parameter accepts the signal name with or without the "signal::" prefix. Example: "signal::sig1" "sig1" |
| Name | Type | Description |
|---|---|---|
| status | int32 | Returns the status code of this operation. The status code either indicates success or describes an error or warning condition. Examine the status code from each call to an RFmx function to determine if an error has occurred. To obtain a text description of the status code and additional information about the error condition, call the RFmxSpecAn_GetError) function. The general meaning of the status code is as follows: |
| Value | Meaning |
|---|---|
| 0 | Success |
| Positive Values | Warnings |
| Negative Values | Errors |
int32 __stdcall RFmxSpecAn_CloneSignalConfiguration (niRFmxInstrHandle instrumentHandle, char oldSignalName[], char newSignalName[]);
Creates a new instance of a signal by copying all the attribute values from an existing signal instance.
| Input | ||
|---|---|---|
| Name | Type | Description |
| instrumentHandle | niRFmxInstrHandle | Identifies the RFmx session. You can obtain this parameter from the RFmxSpecAn_Initialize) function. |
| oldSignalName | char[] | Specifies the name of an existing signal. This parameter accepts the signal name with or without the "signal::" prefix. Example: "signal::OldSigName" "OldSigName" |
| newSignalName | char[] | Specifies the name of the new signal. This parameter accepts the signal name with or without the "signal::" prefix. Example: "signal::NewSigName" "NewSigName" |
| Name | Type | Description |
|---|---|---|
| status | int32 | Returns the status code of this operation. The status code either indicates success or describes an error or warning condition. Examine the status code from each call to an RFmx function to determine if an error has occurred. To obtain a text description of the status code and additional information about the error condition, call the RFmxSpecAn_GetError) function. The general meaning of the status code is as follows: |
| Value | Meaning |
|---|---|
| 0 | Success |
| Positive Values | Warnings |
| Negative Values | Errors |
int32 __stdcall RFmxSpecAn_DeleteSignalConfiguration (niRFmxInstrHandle instrumentHandle, char signalName[]);
Deletes an instance of a signal that you specify in the signalName parameter.
| Input | ||
|---|---|---|
| Name | Type | Description |
| instrumentHandle | niRFmxInstrHandle | Identifies the RFmx session. You can obtain this parameter from the RFmxSpecAn_Initialize) function. |
| signalName | char[] | Specifies the name of the signal. This parameter accepts the signal name with or without the "signal::" prefix. Example: "signal::sig1" "sig1" |
| Name | Type | Description |
|---|---|---|
| status | int32 | Returns the status code of this operation. The status code either indicates success or describes an error or warning condition. Examine the status code from each call to an RFmx function to determine if an error has occurred. To obtain a text description of the status code and additional information about the error condition, call the RFmxSpecAn_GetError) function. The general meaning of the status code is as follows: |
| Value | Meaning |
|---|---|
| 0 | Success |
| Positive Values | Warnings |
| Negative Values | Errors |
int32 __stdcall RFmxSpecAn_GetAllNamedResultNames( niRFmxInstrHandle instrumentHandle, char selectorString[], char resultNames[], int32 resultNamesBufferSize, int32* actualResultNamesSize, int32* defaultResultExists );
Returns all the named result names of the signal that you specify in the Selector String parameter.
| Input | ||
|---|---|---|
| Name | Type | Description |
| instrumentHandle | niRFmxInstrHandle | Identifies the RFmx session. You can obtain this parameter from the RFmxSpecAn_Initialize) function. |
| selectorString | char[] | Comprises the signal name. If you do not specify the signal name, the default signal instance is used. Example: "" "signal::sig1" You can use the RFmxSpecAn_BuildSignalString) function to build the selector string). |
| resultNamesBufferSize | int32 | Specifies the size of the resultNames array. Set the resultNamesBufferSize parameter to 0 to get the size of the resultNames array in the return value. |
| Output | ||
| Name | Type | Description |
| resultNames | char[] | Returns the comma delimited result names. |
| actualResultNamesSize | int32* | Returns the actual size of the resultNames array, if you pass NULL to resultNames array parameter and set the resultNamesBufferSize parameter to 0. |
| defaultResultExists | int32* | Indicates whether the default result exists. |
| Name | Type | Description |
|---|---|---|
| status | int32 | Returns the status code of this operation. The status code either indicates success or describes an error or warning condition. Examine the status code from each call to an RFmx function to determine if an error has occurred. To obtain a text description of the status code and additional information about the error condition, call the RFmxSpecAn_GetError) function. The general meaning of the status code is as follows: |
| Value | Meaning |
|---|---|
| 0 | Success |
| Positive Values | Warnings |
| Negative Values | Errors |
int32 __stdcall RFmxSpecAn_ClearNamedResult (niRFmxInstrHandle instrumentHandle, char selectorString[]);
Clears a result instance specified by the result name in the selectorString parameter.
| Input | ||
|---|---|---|
| Name | Type | Description |
| instrumentHandle | niRFmxInstrHandle | Identifies the RFmx session. You can obtain this parameter from the RFmxSpecAn_Initialize) function. |
| selectorString | char[] | Comprises the signal name, and result name. If you do not specify the signal name, the default signal instance is used. Example: "" "signal::sig1" "result::r1" "signal::sig1/result::r1" You can use the RFmxSpecAn_BuildSignalString )function to build the selector string). |
| Name | Type | Description |
|---|---|---|
| status | int32 | Returns the status code of this operation. The status code either indicates success or describes an error or warning condition. Examine the status code from each call to an RFmx function to determine if an error has occurred. To obtain a text description of the status code and additional information about the error condition, call the RFmxSpecAn_GetError) function. The general meaning of the status code is as follows: |
| Value | Meaning |
|---|---|
| 0 | Success |
| Positive Values | Warnings |
| Negative Values | Errors |
int32 __stdcall RFmxSpecAn_ClearAllNamedResults (niRFmxInstrHandle instrumentHandle, char selectorString[]);
Clears all results for the signal that you specify in the selectorString parameter.
| Input | ||
|---|---|---|
| Name | Type | Description |
| instrumentHandle | niRFmxInstrHandle | Identifies the RFmx session. You can obtain this parameter from the RFmxSpecAn_Initialize) function. |
| selectorString | char[] | Comprises the signal name. If you do not specify the signal name, the default signal instance is used. Example: "" "signal::sig1" You can use the RFmxSpecAn_BuildSignalString) function to build the selector string). |
| Name | Type | Description |
|---|---|---|
| status | int32 | Returns the status code of this operation. The status code either indicates success or describes an error or warning condition. Examine the status code from each call to an RFmx function to determine if an error has occurred. To obtain a text description of the status code and additional information about the error condition, call the RFmxSpecAn_GetError) function. The general meaning of the status code is as follows: |
| Value | Meaning |
|---|---|
| 0 | Success |
| Positive Values | Warnings |
| Negative Values | Errors |
int32 __stdcall RFmxSpecAn_ClearNoiseCalibrationDatabase (niRFmxInstrHandle instrumentHandle, char selectorString[]);
Clears the noise calibration database used for noise compensation.
| Input | ||
|---|---|---|
| Name | Type | Description |
| instrumentHandle | niRFmxInstrHandle | Identifies the RFmx session. You can obtain this parameter from the RFmxSpecAn_Initialize) function. |
| selectorString | char[] | Comprises the signal name. If you do not specify the signal name, the default signal instance is used. Example: "" "signal::sig1" You can use the RFmxSpecAn_BuildSignalString) function to build the selector string). |
| Name | Type | Description |
|---|---|---|
| status | int32 | Returns the status code of this operation. The status code either indicates success or describes an error or warning condition. Examine the status code from each call to an RFmx function to determine if an error has occurred. To obtain a text description of the status code and additional information about the error condition, call the RFmxSpecAn_GetError) function. The general meaning of the status code is as follows: |
| Value | Meaning |
|---|---|
| 0 | Success |
| Positive Values | Warnings |
| Negative Values | Errors |