Accession Number : ADD010410

Title :   Low Sidelobe Pulse Compressor.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Lewis,Bernard L ; Kretschmer,Frank F

Report Date : 05 Apr 1983

Pagination or Media Count : 9

Abstract : A pulse compression system based on the transmission of a step approximation to linear FM pulse, and the subsequent processing of echos therefrom by converting the echo pulses I and Q baseband signals and then sampling these I and Q signals at the Nyquist sampling rate. It has been discovered that this processing yields a signal with a spectrum substantially identical to the spectrum of a properly sampled Frank coded pulse. These sampled I and Q signals are then compressed by a Fast Fourier Transform compressor to yield a pulse with low sidelobes. (Author)

Descriptors :   *Patents, *Pulse compression, *Radar pulses, *Sidelobes, Circuits, Fast fourier transforms, Frequency modulation, Transmitters, Low level, Signal generators, Pulses, Delay circuits, Linear systems, Amplitude, Compressors, Frequency, Sampling, Coding, Q switching, Filters, Yield, Narrowband, Signals, Output

Subject Categories : Active & Passive Radar Detection & Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE