IviRFSigGen_ConfigureDigitalModulationBasePRBSType
IviRFSigGenDigitalModulationBase Capability Group
C Function Prototype
ViStatus IviRFSigGen_ConfigureDigitalModulationBasePRBSType (ViSession vi, ViInt32 type);
Purpose
This function configures the type of the PRBS used as data for the digital modulation. The setting is used only if IVIRFSIGGEN_ATTR_DIGITAL_MODULATION_BASE_DATA_SOURCE is set to PRBS.
Parameters
| Name | Type | Description |
|---|---|---|
| vi | ViSession | The ViSession handle that you obtain from the IviRFSigGen_init or IviRFSigGen_InitWithOptions function. The handle identifies a particular instrument session. Default Value: None |
| type | ViInt32 | Specifies the type of the PRBS as defined in the CCITT-V.52 standard. The PRBS (Pseudo Random Binary Sequence) is used only if the IVIRFSIGGEN_ATTR_DIGITAL_MODULATION_BASE_DATA_SOURCE attribute is set to PRBS. The driver uses this value to set the IVIRFSIGGEN_ATTR_DIGITAL_MODULATION_BASE_PRBS_TYPE attribute. Defined Values: IVIRFSIGGEN_VAL_DIGITAL_MODULATION_BASE_PRBS_TYPE_PRBS9 - Length of PRBS sequence is 2E9-1. IVIRFSIGGEN_VAL_DIGITAL_MODULATION_BASE_PRBS_TYPE_PRBS11 - Length of PRBS sequence is 2E11-1. IVIRFSIGGEN_VAL_DIGITAL_MODULATION_BASE_PRBS_TYPE_PRBS15 - Length of PRBS sequence is 2E15-1. IVIRFSIGGEN_VAL_DIGITAL_MODULATION_BASE_PRBS_TYPE_PRBS16 - Length of PRBS sequence is 2E16-1. IVIRFSIGGEN_VAL_DIGITAL_MODULATION_BASE_PRBS_TYPE_PRBS20 - Length of PRBS sequence is 2E20-1 IVIRFSIGGEN_VAL_DIGITAL_MODULATION_BASE_PRBS_TYPE_PRBS21 - Length of PRBS sequence is 2E21-1. IVIRFSIGGEN_VAL_DIGITAL_MODULATION_BASE_PRBS_TYPE_PRBS23 - Length of PRBS sequence is 2E23-1. Default Value: IVIRFSIGGEN_VAL_DIGITAL_MODULATION_BASE_PRBS_TYPE_PRBS9 |