Agilent Technologies ESG Specifikace stáhnout pdf (Strana 250)

5-12 Fully Coded 3GPP W-CDMA Personality User’s and Programming Guide

Remote Programming and Examples ESG Family Signal Generators

W-CDMA Subsystem SCPI Command Reference Option 200

Filter Setup

Filter

[:SOURce]:RADio:WCDMa:TGPP[:BBG]:DLINk:FILTer RNYQuist|NYQuist|GAUSsian|

[:SOURce]:RADio:WCDMa:TGPP[:BBG]:DLINk:FILTer?

This command selects one of the following filter types:

RNYQuist Root Nyquist

NYQuist Nyquist

GAUSsian Gaussian

RECTangle Rectangle

IS95 IS-95

IS95_EQ IS-95 with equalizer

IS95_MOD IS-95 modified

IS95_MOD_EQ IS-95 modified with equalizer

AC4Fm APCO 25 C4FM

UGGaussian UN3/4 delay compatible, 0.300 fixed BbT, GSM Gaussian

"<User FIR>" User defined FIR

Filter Alpha (for Nyquist or Root Nyquist)

[:SOURce]:RADio:WCDMa:TGPP[:BBG]:DLINk:FILTer:ALPHa <0.000 to 1.000>

[:SOURce]:RADio:WCDMa:TGPP[:BBG]:DLINk:FILTer:ALPHa?

Execute this command to change the alpha value for a Nyquist or root Nyquist filter. The

pre-defined alpha value is 0.220. This command is effective only after selection of a root

Nyquist or Nyquist filter; it does not affect other types of filters.

Range: 0.000 to 1.000

Once set, this value is not affected by an instrument preset or by a power cycle.

Filter BbT (for Gaussian)

[:SOURce]:RADio:WCDMa:TGPP[:BBG]:DLINk:FILTer:BBT <0.000 to 1.000>

[:SOURce]:RADio:WCDMa:TGPP[:BBG]:DLINk:FILTer:BBT?

Execute this command to change the bandwidth-multiplied-by-bit-time filter parameter

value. The pre-defined BbT value is 0.500, This command is effective only after selection of

a Gaussian filter; it does not affect other types of filters.

Range: 0.000 to 1.000

Once set, this value is not affected by an instrument preset or by a power cycle.

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Agilent Technologies ESG Specifikace Strana 250