Digital pulse compression filter

Details Digital pulse compression filter Digital pulse compression filter

1984-11-19

1987-06-16

Tubbesing, T. H.

Communications: directive radio wave systems and devices (e.g.,

With particular circuit

For frequency modulation

342194, 342195, 367100, H03H 1700, G01S 728

Patent

active

046739416

ABSTRACT:
A digital pulse compression filter for use in a radar or sonar transmitting and receiving unit to process sampled and digitized signals. The sampling frequency (f.sub.s) is equal to about four times the center frequency (f.sub.o) and greater than about twice the bandwidth (.DELTA.f) of these signals. The pulse compression filter (5) comprises a time correlation circuit (7) supplied on the one hand with the sampled and digitized signals and on the other hand with signals representing a replica of the radar or sonar transmitter pulse, whereby one of the two types of signals supplied to the correlation circuit (7) is correlated with the orthogonal components of the other type of signals supplied to the correlation circuit (7) to obtain the orthogonal components of the compressed pulse.

REFERENCES:
patent: 3156914 (1964-11-01), Welti
patent: 3217324 (1965-11-01), Adamsbaum et al.
patent: 4028700 (1977-06-01), Carey et al.
patent: 4156876 (1979-05-01), Debuisser
patent: 4416016 (1983-11-01), Iapicco
patent: 4556010 (1986-01-01), Collins
patent: 4591857 (1986-05-01), Thor
M. Skolnik, Intro. to Radar Systems; pp. 375-376, (McGraw-Hill, 1980).
F. Lam et al., "A Real-Time Correlation System for Ultrasonic Non-Destructive Testing"; Intl. Journal of Electronics, (vol. 53, No. 2; 1982; pp. 133-147).

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