Multi-mode radar exciter

Details Multi-mode radar exciter Multi-mode radar exciter

1998-07-10

2000-06-27

Sotomayor, John B.

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

With particular circuit

For frequency modulation

342203, 342204, G01S 7282

Patent

active

060812265

ABSTRACT:
A radar exciter including a direct digital synthesis (DDS) wideband waveform generator which performs the frequency synthesis function heretofore performed by a direct analog synthesizer. This is achieved by deriving the DDS frequencies, the exciter RF frequencies, the radar synchronizer clock frequency and receiver analog/digital (A/D) converter clock frequency from a common signal source generating a master frequency. The present invention eliminates the direct analog synthesizer and relies solely on the digital generation of waveforms by a DDS wideband waveform generator which performs a discrete sampling process so as to provide coherent frequency and timing relationships.

REFERENCES:
patent: 4968968 (1990-11-01), Taylor
patent: 5309160 (1994-05-01), Powell et al.
patent: 5361072 (1994-11-01), Barrick et al.
patent: 5506583 (1996-04-01), McVicker
patent: 5719579 (1998-02-01), Torre et al.
patent: 5732107 (1998-03-01), Phillips et al.
patent: 5861834 (1999-01-01), Sauer et al.
patent: 5867535 (1999-02-01), Phillips et al.

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