Double multi-base forward-looking imaging time-frequency-space synchronization method

The invention relates to the technical field of real-time imaging and discloses a double multi-base forward-looking imaging time-frequency-space synchronization method. The method comprises steps of acquiring a clock source through a GPS signal, and synchronizing the time frequency of a transmitting platform and the time frequency of a receiving platform based on PPS pulse per second; acquiring the initial position information of the transmitting platform and the receiving platform under the condition of time-frequency synchronization; filtering the initial position information and the inertiameasurement structure to obtain the accurate position information; through measuring the attitude and motion information of the receiving/sending platforms, calculating a pointing angle of a receivedwave beam through a discrete pulse chasing method, and calculating the receiving beam pointing. 本发明涉及实时成像技术领域，公开了一种双多基前视成像时频空同步方法。该方法通过GPS信号获取时钟源，基于PPS秒脉冲使发射平台和接收平台时频同步；在时频同步情况下获取发射平台和接收平台的初始位置信息；在将初始位置信息和惯性测量的结构进行滤波获取精确的位置信息