Scaled multiple function nonlinear FM waveform

Details Scaled multiple function nonlinear FM waveform Scaled multiple function nonlinear FM waveform

1993-04-08

1994-05-17

Hellner, Mark

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

With particular circuit

For frequency modulation

342201, 342130, 342132, G01S 1300

Patent

active

053132149

ABSTRACT:
Scaled multiple function non-linear FM waveforms are generated for use in digitally implemented low frequency radar. The non-linear FM waveforms are generated by combining a plurality of functions, each having varying characteristics, to form a single waveform which has the desirable characteristics of weighted linear FM waveforms without the undesirable attributes due to weighting. Accordingly, the use of the non-linear FM waveform results in an increase in detection range of eight percent over existing linear FM waveforms with no degradation in range resolution.

REFERENCES:
patent: 5070337 (1991-12-01), Chen et al.
Skolnik, "Introduction to Radar Systems", Chapter 11, McGraw-Hill, 1980.

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