Device and method for measuring target motion error of inverse synthetic aperture laser radar

The invention discloses an inverse synthetic aperture laser radar target motion error measuring device and method. The device comprises a signal source, a control computer, a waveform generator, a modulator, a signal distributor, a signal transmitting system, a signal receiving system, a coupler, a detector, a signal processing system and a signal monitoring system. Wherein the signal modulation comprises a plurality of parameter modulation forms, and a plurality of modulation signals are combined to serve as a signal source to measure target motion parameters. According to the measuring device and method disclosed by the invention, the dynamic range and precision of system motion error measurement can be improved on the basis of ensuring the imaging performance of the system, and extra motion parameter measuring equipment does not need to be provided. According to the method, the envelope similarity is used as an evaluation index of an optimization process, so that measurement errors can be effectively reduc