Communications: directive radio wave systems and devices (e.g. – With particular circuit – For frequency modulation
Patent
1993-08-10
1995-02-14
Hellner, Mark
Communications: directive radio wave systems and devices (e.g.,
With particular circuit
For frequency modulation
342 21, G01S 1328
Patent
active
053899334
ABSTRACT:
A method is described for improving the target-detection performance of a linear pulse compression radar system by reducing the amplitude of the temporal sidelobes contained in the autocorrelation function output of a matched filter receiver. The method involves generating a transmitter signal pulse using a waveform which linearly varies the frequency of a baseband signal between first and second frequencies which are selected so as to optimize the percentage cycle-to-cycle frequency variation in the transmitter signal pulse. In one example, the minimum frequency of the carrier waveform is set close to 0 MHz. Optimization of the percentage cycle-to-cycle frequency variation causes a reduction in the width of the compressed pulse, which the designer may choose to forego, in favor of reducing the amplitude of the temporal sidelobes of the compressed pulse signal output.
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"Introduction to Radar Systems", Merrill I. Skolnik McGraw-Hill, 1980 pp. 422-424.
Grumman Aerospace Corporation
Hellner Mark
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