Title :
A supplementary automatic frequency pull-in method for phase-locked frequency synthesizer
Author :
Shuting, Gao ; Jingwei, Zhu
Author_Institution :
Inst. of Electron., Xi´´an Electron. Eng. Res. Inst., China
Abstract :
A modern radar requires its frequency synthesizer to have a very short frequency agile time, for this reason, the frequency agile time of indirect radar frequency synthesizers is analyzed, a pull-in method by means of frequency-digital conversion, which has the shortest pull-in time, is proposed, and its basic principle is given
Keywords :
Doppler radar; frequency agility; frequency convertors; frequency synthesizers; phase locked loops; radar equipment; voltage-controlled oscillators; PLL; VCO; automatic frequency pull-in method; frequency agile time; frequency-digital conversion; indirect radar frequency synthesizers; phase-locked frequency synthesizer; pulsed Doppler radar; Adders; Automatic frequency control; Doppler radar; Filters; Frequency conversion; Frequency synthesizers; Microprocessors; Phase locked loops; Voltage control; Voltage-controlled oscillators;
Conference_Titel :
Radar, 1996. Proceedings., CIE International Conference of
Conference_Location :
Beijing
Print_ISBN :
0-7803-2914-7
DOI :
10.1109/ICR.1996.573802
