Determination of the maximum working stress in the main section and the working load characteristics of the main frame, side frame and the side car& stable narrow band random variable load, provides true loading basis for the safe and economic design of motorcycle. 确定主车架、边车架、边车斗的工作载荷的性质&稳态窄带随机变幅载荷主要部位最大工作应力,为安全而又经济的设计提供了真实的载荷依据;
The main research contents: 1. This dissertation is analyzed the imaging model of spaceborne SAR and the basic principles of imageing processing and studies the RD imaging algorithm detailly and simulation the algorithm with Matlab in the case of positive side view and band. 2. 主要的研究内容为:1.分析了星载SAR的成像模型以及成像处理的基本原理,详细研究了RD成像算法,在正侧视和条带式的情况下对其进行了Matlab仿真。