Performs the enabled measurements on the I/Q complex waveform that you specify in the IQ parameter. Call this function after you configure the signal and measurement attributes. You can fetch measurement results using the Fetch functions or result attributes in the attribute node. Use this function only if the RFMXINSTR_ATTR_RECOMMENDED_ACQUISITION_TYPE attribute value is either IQ or IQ or Spectral.

Note

Query the Recommended Acquisition Type attribute from the RFmxInstr Attribute after calling the RFmxBT_Commit function.

Syntax

int32 __stdcall RFmxBT_AnalyzeIQ1Waveform(niRFmxInstrHandle instrumentHandle, char selectorString[], char resultName[], float64 x0, float64 dx, NIComplexSingle iq[], int32 arraySize, int32 reset, int64 reserved)

Parameters

NameDirectionTypeDescription
instrumentHandle[in]niRFmxInstrHandle

This parameter specifies the RFmx session refnum. This parameter is obtained from the RFmxInstr_Initialize function.

selectorString[in]char

This parameter specifies the signal name and result name. The result name can either be specified through this input or the Result Name parameter. If you do not specify the signal name, the default signal instance is used. If you do not specify the result name in this parameter, either the result name specified by the Result Name parameter or the default result instance is used. The default value is "" (empty string).
Example:
""
"signal::sig1"
"result::r1"
"signal::sig1/result::r1"
You can use the RFmxBT_BuildSignalString function to build the Selector String.

resultName[in]char

This parameter 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. The default value is "" (empty string), which refers to the default result instance.
Example:
""
"result::r1"
"r1"

x0[in]float64

This parameter specifies the start time of the input y array. This value is expressed in seconds.

dx[in]float64

This parameter specifies the time interval between the samples in the input y array. This value is expressed in seconds. The reciprocal of dx indicates the I/Q rate of the input signal.

iq[in]NIComplexSingle

This parameter specifies the data for a complex I/Q waveform including the start, delta, and actual values.

arraySize[in]int32

Specifies the size of the array. Set the arraySize parameter to 0 to get the size of all the arrays in the actualArraySize parameter.

reset[in]int32

This parameter resets measurement averaging. If you enable averaging, set this parameter to TRUE for the first record and FALSE for the subsequent records.

reserved[in]int64

Reserved for future use. Any value passed to this parameter will be ignored.

Returns

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 RFmxBT_GetError function.

The general meaning of the status code is as follows:

Value

Meaning

0

Success

Positive Values

Warnings

Negative Values

Errors