Edge effect reduction by smoothing in digital receivers

Details Edge effect reduction by smoothing in digital receivers Edge effect reduction by smoothing in digital receivers

1988-04-22

1990-09-18

Safourek, Benedict V.

Pulse or digital communications

Spread spectrum

Direct sequence

326163, 375103, H03K 501

Patent

active

049583611

ABSTRACT:
A method for reducing interchannel noise or spectral splatter in fast fourier transform processing of digital data. Data is buffered and processed along two paths. During processing along the first path, a sharp discontinous edge is detected. Weights are applied to data samples around the edge to smooth the discontinuity. When the edge is processed by fourier transform methods, the sharp edge no longer causes broad band interchannel noise.

REFERENCES:
patent: 3938050 (1976-02-01), Corbett et al.
patent: 4358788 (1982-11-01), Burrowes
patent: 4410955 (1983-10-01), Burke et al.
patent: 4601005 (1986-07-01), Kilvington
patent: 4780623 (1988-10-01), Yagi

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