加速度的测量在许多领域都是不可缺少的，本文研究了一种基于PSD的激光加速度计。
The measurement of acceleration is necessary in many fields. A laser accelerometer based on PSD is described in this paper.
本论文主要研究内容：首先，设计了基于PSD的激光加速度计系统的结构，针对此结构推导了该数字式力平衡加速度计输出脉冲差与输入加速度之间的关系。
Firstly, the structure of the laser accelerometer based on PSD are designed in this dissertation. The relation between the output pulse difference and the input acceleration is derived.
以实际工程应用为背景，推导了运动约束条件下，基于两个激光陀螺、两个加速度计的系统姿态测量模型。
Based on the practical engineering background, the mathematic model of the system composed of two laser gyros and two accelerometers is derived under the dynamic restriction.
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