Narrow band correlator and noise cancellor

Details Narrow band correlator and noise cancellor Narrow band correlator and noise cancellor

G - Physics

01

V

354/141

G01V 1/36 (2006.01) G01S 7/292 (2006.01) G01S 7/527 (2006.01)

Patent

CA 1255005

NARROW BAND CORRELATOR AND NOISE CANCELLOR ABSTRACT OF THE DISCLOSURE A narrow band noise cancellor and signal correllator which obtains an increased signal to noise ratio of a received signal from a multi sensor array; the resulting output signal is at double the input frequency A pair of narrow band similar input signals are added, and subtracted, and the resulting signals are multiplied together. The positive and negative product terms of the signal are separated and the positive term inverted, and the resulting separated signals are individually added with the squared representation of one of the input signals. The resulting added signals are summed and the sum is passed through a narrow band filter . having its center frequency at double the input frequency. -i-

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