Title :
Ambiguity function of quadriphase coded radar pulse
Author :
Levanon, Nadav ; Freedman, Avraham
Author_Institution :
Dept. of Electron. Syst., Tel-Aviv Univ., Ramat-Aviv, Israel
fDate :
11/1/1989 12:00:00 AM
Abstract :
Taylor´s quadriphase coding (J.W. Taylor, Jr. and H.J. Blinchikoff, ibid., vol.23, no.2, p.156-70, Mar. 1988) is investigated for nonzero Doppler shifts. While the zero-Doppler cut of the ambiguity function (i.e. the autocorrelation) strongly resembles that of the corresponding biphase code, the remaining ambiguity function differs considerably. The ambiguity function of quadriphase code 13 is typified by a diagonal ridge as found in linear FM signals. The ambiguity function of quadriphase code 28A resembles the three parallel ridges of Frank code 16
Keywords :
Doppler effect; codes; correlation methods; data compression; radar theory; Frank code 16; ambiguity function; autocorrelation; biphase code; diagonal ridge; linear FM signals; nonzero Doppler shifts; parallel ridges; quadriphase code 13; quadriphase code 28A; quadriphase coded radar pulse; zero-Doppler cut; Autocorrelation; Delay lines; Doppler radar; Doppler shift; Electronics industry; Frequency; Narrowband; Pulse compression methods; Signal generators; Switches;
Journal_Title :
Aerospace and Electronic Systems, IEEE Transactions on
