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。

Spaceborne full waveform laser altimeter for space remote sensing has the advantage of high precision and more information. Simulation and analysis of spaceborne full waveform laser altimeter have become a valuable tool for system design and evaluation. Modules of simulation have been proposed according to research on spaceborne full waveform laser altimeter. Transmitter model, target model and receiver model are established for simulation of full waveform echo signal. Full waveform data are simulated using a square sampling process taking no account of influence of atmosphere and difference of reflection. Moreover full waveform data are processed for parameter calculation. Laser echo calculated by each module will be estimated before system design which is useful for system design and full waveform data process.