RFmxWCDMA_ACPFetchOffsetMeasurementArray
- Updated2024-10-14
- 2 minute(s) read
RFmxWCDMA_ACPFetchOffsetMeasurementArray
int32 __stdcall RFmxWCDMA_ACPFetchOffsetMeasurementArray (niRFmxInstrHandle instrumentHandle, char selectorString[], float64 timeout, float64 lowerRelativePower[], float64 upperRelativePower[], float64 lowerAbsolutePower[], float64 upperAbsolutePower[], int32 arraySize, int32* actualArraySize);
Purpose
Fetches an array of absolute powers and an array of relative powers measured in the offset channels for the ACP measurement. The relative powers are measured with reference to the
RFMXWCDMA_ATTR_ACP_OFFSET_POWER_REFERENCE_CARRIER attribute.
Parameters
| Input | ||
| Name | Type | Description |
| instrumentHandle | niRFmxInstrHandle | Specifies the instrument session. The RFmx driver obtains this parameter from the RFmxWCDMA_Initialize function. |
| selectorString | char[] | Specifies a selector string comprising of the signal name and result name. If you do not specify the signal name, the default signal instance is used. If you do not specify the result name, the default result instance is used. Example: "signal::sig1" "result::r1" "signal::sig1/result::r1" You can use the RFmxWCDMA_BuildSignalString function to build the selector string. |
| timeout | float64 | Specifies the timeout, in seconds, for fetching the specified measurement. Set this value to an appropriate time, longer than expected for fetching the measurement. A value of -1 specifies that the function waits until the measurement is complete. |
| arraySize | 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. |
| Output | ||
| Name | Type | Description |
| lowerRelativePower | float64[] | Returns an array of lower offset channel power values measured relative to the
power of the carrier(s) that you specify in the
RFMXWCDMA_ATTR_ACP_OFFSET_POWER_REFERENCE_CARRIER attribute. This value is expressed in dB.
|
| upperRelativePower | float64[] | Returns an array of upper offset channel power values measured relative to the power of the carrier(s) that you specify in the
RFMXWCDMA_ATTR_ACP_OFFSET_POWER_REFERENCE_CARRIER attribute. This value is expressed in dB.
|
| lowerAbsolutePower | float64[] | Returns an array of lower offset channel power values.
The lower offset channel power is the integrated power of the RRC-filtered signal at the lower offset frequency. The RRC filter uses a bandwidth of 3.84 MHz with a roll-off factor of 0.22. |
| upperAbsolutePower | float64[] | Returns an array of upper offset channel power values.
The upper offset channel power is the integrated power of the RRC-filtered signal at the upper offset frequency. The RRC filter uses a bandwidth of 3.84 MHz with a roll-off factor of 0.22. |
| actualArraySize | int32* | Returns the actual size of the array, if you pass NULL to all output array parameters, and set the arraySize parameter to 0. |
Return Value
| 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 RFmxWCDMA_GetError function. The general meaning of the status code is as follows:
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