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全波形激光测高仪技术以其高精度和信息含量丰富成为星载激光测高仪发展的重要方向。为了实现星载激光测高仪完整链路的性能评估,对星载全波形激光测高仪仿真分析模型进行了研究,提出了仿真模型的模块组成。根据激光发射模型、地物模型和接收模型,采用空间细分思想,利用激光雷达方程,完成了星载激光测高仪全波形回波信号的仿真,并采用参数提取算法对回波信号的特征参数进行了提取,实现了星载激光测高仪完整链路的仿真与数据分析。在星载激光测高仪系统设计之初即可实现各环节激光回波信号的预估,在系统设计、产品研制和数据处理中可以发挥重要作用。
Full-wave laser altimeters technology with its high precision and rich information content has become an important direction for the development of satellite laser altimeters. In order to evaluate the performance of the complete link of the satellite laser altimeter, the simulation analysis model of the satellite full-wave laser altimeter was studied, and the module composition of the simulation model was proposed. According to the laser emission model, the ground object model and the receiving model, using the idea of space subdivision, using the Lidar equation, the simulation of the full waveform echo signal of the satellite laser altimeter was completed. The parameters of the echo signal were extracted by using the parameter extraction algorithm The extraction and realization of the complete link simulation and data analysis of the satellite laser altimeter. In the early design of the satellite-based laser altimeter system can be achieved in all aspects of laser echo signal estimation, in system design, product development and data processing can play an important role.