Then an overview of the principle of sar is given , the computer model of the radar echo is discussed in detail , the simulation result of the ideal static point target and ideal static distributed target based on the computer model are presented 在阐明合成孔径雷达基本原理的基础上,深入地探讨了合成孔径雷达的回波模型,并借助此模型分别进行了理想静止点目标和分布目标的回波仿真。
In this paper , the main problem is to detect the position and velocity of moving target by fractional fourier transform which could be concluded by three parts , the echo model establishment of moving target , the realization of fractional fourier transform and parameters estimation of moving target , detailed contents are as follows . firstly , the paper analyses the echo model of sar static target and introduces a kind of sar imaging algorithm , range - doppler ( r - d ) algorithm 本文的主要内容包括三个部分,即动目标回波模型建立、分数阶傅立叶变换的实现和动目标参数估计,具体来说,其内容如下:首先,本文研究分析了合成孔径雷达静止点目标的回波模型并介绍了一种基本的合成孔径雷达成像算法? ?距离-多普勒( r - d )算法。
静止: static; motionless; at a sta ...点: drop强制静止点: constrained stationary point限制性静止点: constrained stationary point止点: dead center; dead point; death point; insertion静止: static; motionless; at a standstill 不要静止地孤立地看待事物。 don't view things as static and isolated. 生活永远不是静止的。 life is never at a standstill. 形而上学宇宙观用孤立的、静止的和片面的观点去看世界。 the metaphysical world outlook sees things as isolated, static and one-sided.; 静止不动 transfixion; 静止场 [物理学] static field; 静止电极 stationary electrode; 静止电位 [电学] rest potential; 静止通信卫星 stationary communication satellite; 静止图像 still image; 静止位置 resting position; unoperated position; 静止卫星 fixed satellite; stationary satellite; 静止卫星导航系统 navigation system of stationary satellite; 静止状态 condition of rest; idle state; quiescent conditions; state of rest 椿止点: pile stoppage point夹止点: pinch-off point截止点: closure point; cut off point; cut-out point; cutoff point内止点: inner dead center; inner dead point起止点: terminal上止点: (udp) upper dead point; tc tocenter; todead center(upper dead center); top center; top dead ceuter; udc upper dead center; upper center; upper dead center停止点: arrests; hold point外止点: outer dead point下止点: (ldp) lower dead point; bottom center; bottom dead point; ldc lower dead center; lower center; lower dead center(bottom dead center); lower dead point止点规: dead center gauge止止点: u er dead center; upper dead center滞止点: stagnatio oint; stagnation point终止点: end point桩止点: pile stoppage point; refusal冲程止点: death point椿的止点: refusal of pile; refusal point存活终止点: survival end point达到截止点: reach the cutoff pointt打到止点: right home