Title :
Acousto-optic heterodyne channelizer
Author :
Cheng Nai Ping ; Dingrong, Shao
Author_Institution :
Dept. of Electron. Eng., Beijing Univ. of Aeronaut. & Astronaut., China
Abstract :
A heterodyne spectrum analysis AO channelizer is proposed. The basic theory of heterodyne spectrum analysis is described, and an interferometric optical system and an instantaneous photodetector array are introduced. The methods for designing a local reference signal are discussed. Using this AO channelizer a large dynamic range (>50 dB), large number of channels (>100) and high frequency resolution (25 kHz) can be achieved
Keywords :
acousto-optical signal processing; arrays; demodulation; light interferometers; photodetectors; radar receivers; radio receivers; signal resolution; spectral analysers; acousto-optic heterodyne channelizer; frequency resolution; heterodyne spectrum analysis AO channelizer; instantaneous photodetector array; interferometric optical system; local reference signal design; Apertures; Band pass filters; Equations; Information analysis; Optical beams; Optical losses; Photodetectors; Power measurement; Signal resolution; Spectral analysis;
Conference_Titel :
Communication Technology Proceedings, 1996. ICCT'96., 1996 International Conference on
Conference_Location :
Beijing
Print_ISBN :
0-7803-2916-3
DOI :
10.1109/ICCT.1996.545249
