Title :
High Speed Microwave Amplitude and Phase Measurement System Built around Nyquist Rate Digital Phase-Locked Loop
Author :
Dong, Yuliang ; He, Guoyu ; Wu, Jianhua ; Xu, Jun
Author_Institution :
Univ. of Electron. Sci. & Technol. of China, Chengdu
Abstract :
A digital phase-locked receiver architecture is presented for microwave and millimeter wave amplitude and phase measurements. This architecture characterized by a built-in Nyquist rate digital phase-locked loop can reduce the accuracy degradation caused by frequency errors from microwave sources. The hardware logic implementation of core algorithm enhances its highest measurement speed up to 350,000 points per second, which is near an order of magnitude higher than that of the current popular amplitude and phase receivers, and potential increase is prospective. A complete microwave amplitude and phase measurement system has been developed and tested. The results of practical test show its performance of high speed and accuracy.
Keywords :
digital phase locked loops; microwave measurement; millimetre wave measurement; phase measurement; Nyquist rate; core algorithm; digital phase-locked loop; frequency errors; hardware logic implementation; microwave amplitude measurements; millimeter wave amplitude measurements; phase measurement; Current measurement; Degradation; Frequency; Hardware; Logic; Millimeter wave measurements; Phase locked loops; Phase measurement; System testing; Velocity measurement; amplitude and phase measurements; digital phase-locked loops; microwave measurements; receivers;
Conference_Titel :
Electronic Measurement and Instruments, 2007. ICEMI '07. 8th International Conference on
Conference_Location :
Xi´an
Print_ISBN :
978-1-4244-1136-8
Electronic_ISBN :
978-1-4244-1136-8
DOI :
10.1109/ICEMI.2007.4350430
