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Primary Examiner: Hubler, Malcolm F.
Assistant Examiner:
Attorney: Hill, Van Santen, Steadman, Chiara & Simpson

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Title: Adaptive method and a radar receiver for suppression of disturbing portions of the Doppler spectrum

Abstract: Disturbing components of the Doppler frequency spectrum in a radar receiver, having coherent integration, are suppressed. In this technique, the order of interference suppression and coherent integration is changed such that the echo values are first fed to a circuit to effect a Fourier transformation. Then, the disturbing components in the frequency band are deliberately suppressed, and a sub-optimal detection method suitable for real-time operation is derived from the optimum detection model in that sub-matrices symmetrical with the principle diagonal are formed from the power spectrum matrix, through which approximate decorrelation of the disturbing components is achieved.

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Inventors: Klemm, Richard (La Spezia, IT)

Application Number: 963359
Filing Date: 1978-11-24
Publication_date: 1980-11-18
Assignee: Siemens Aktiengesellschaft (Berlin & Munich, DE)
Primary Class(es): 342/159 342/196
Other Classes:
US Patent Ref:

3783258	Jan, 1974	Chwastyk	343/5.
3987285	Oct, 1976	Perry	343/5.
4003054	Jan, 1977	Goldstone	343/5.
4053885	Oct, 1977	Yomita et al.	343/5.
4069468	Jan, 1978	Bartram	343/5.

Other Refs: Other References: "Adaptive Digital MTI Signal Processing" by V. G. Hansen et al., _Eascon 73 Record (1973) IEEE, pp. 170-176.