STUDY OF LOCAL OSCILLATOR STABILITY SPECIFICATIONS FOR SYNTHETIC APERTURE RADAR

摘要

The theory of local oscillator noise performance was surveyed and the consequent degradation of a synthetic aperture radar (SAR) image derived. Local oscillator performance specifications including necessary amplifiers and multipliers (e.g., short term stability, a.m. spectral noise power density, f.m. spectral noise power density, r.m.s. phase error, spurious and harmonic generation, etc.) the consequent image degradation. The worst sources of degradation were identified and the possibility of improving the overall performance by modifying the overall degradation budget was analyzed. A completely justified specification to be used as a target for hardware is detailed.