The invention provides a ground
verification instrument of a
satellite-based
marine radar height gauge, which is used for performing
absolute calibration, performance examination and function test on the
satellite-based
marine radar height gauge in a laboratory. The ground
verification instrument of the
satellite-based
marine radar height gauge comprises a time service unit, a transceiving
control unit, a transmitting unit, a receiving unit, a frequency heald unit and a
numerical control unit. The frequency heald unit utilizes an ultra-stable
crystal oscillator
signal provided by a
radar height gauge to be verified as a
clock. The time service unit takes charge of providing accurate synchronous time service for the
numerical control unit and the
radar height gauge. The transceiving
control unit takes charge of respectively and simultaneously sending signals transmitted by the transmitting unit to the receiving unit and the
radar height gauge and also controlling the receiving unit to receive the signals transmitted by the radar height gauge or the signals transmitted by the transmitting unit. The
numerical control unit takes charge of eliminating channel influences of a
verification instrument
system, generating calibration signals, simulating echo signals of various target scenes and controlling the transceiving
control unit, the receiving unit, the transmitting unit and the frequency heald unit.