Digital Modulation/Demodulation Measurement System within Connected Solution

This paper proposes a digital modulation /demodulation measurement system implemented by the Agilent advanced design system (ADS)-connected solution with vector signal analyzer (VSA) software, VSA instrument built into an analog digital converter (ADC), and an ESG vector signal generator. The ADS system software is suitable to design a digital modulation signal for error vector magnitude (EVM) analysis in RF transmitter (TX). The bit error rate (BER) analysis in RF receiver (RX) was estimated by the recording file from VSA software simultaneously. The proposed testing platform can measure the characteristics of RF transceivers, such as EVM, BER, constellation, and eye diagrams. The nonlinearity and distortion properties were evaluated through the EVM system parameter.

[1]  Wan-Jong Kim,et al.  Digital predistortion of a Doherty amplifier with a weak memory within a connected solution , 2004, IEEE 60th Vehicular Technology Conference, 2004. VTC2004-Fall. 2004.

[2]  I Eizmendi,et al.  Improving measurement techniques for testing digital broadcasting systems , 2010, 2010 IEEE Instrumentation & Measurement Technology Conference Proceedings.

[3]  Nuno Borges Carvalho,et al.  EVM Estimation in RF/Wireless Components , 2007, 2007 IEEE 18th International Symposium on Personal, Indoor and Mobile Radio Communications.

[4]  Jean-Louis Carbonero,et al.  A New Loopback GSM/DCS Bit Error Rate Test Method On Baseband I/Q Outputs , 2001, 57th ARFTG Conference Digest.