Radar system with reduced distance error

Details Radar system with reduced distance error Radar system with reduced distance error

1985-05-09

1988-01-12

Tubbesing, T. H.

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

With particular circuit

For frequency modulation

G01S 728

Patent

active

047194685

ABSTRACT:
In a radar system comprising equipment for transmitting frequency modulated pulses and compressing the received signals in a filter for frequency-dependent weighting, the weighting is asymmetrical in a manner such that the leading sidelobes of the pulse compression signal are reduced and the lagging sidelobes are raised. The reduced leading sidelobes can easily be reduced below an amplitude threshold so that the main echo lobe within the pulse compression signal is reliably acquired for determining the closest target distance. The invention may advantageously be applied to ground tracking radars.

REFERENCES:
patent: 4150378 (1979-04-01), Barton
Temes, "Sidelobe Suppression in a Range-Channel Pulse Compression Radar", IRE Trans. on Mil. Elec., vol. 6, 1962, pp. 162-169.
Cook et al., "A Pulse Compression Predistortion Function for Efficient Sidelobe Reduction in a High Power Radar", IEEE, 52, Apr. 1964, pp. 377-389.
Gerard et al., "The Design and Applications of Highly Dispersive Acoustic Surface Wave Filters", IEEE Trans. vol. su-20, No. 2, Apr. 173, pp. 94-104.

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