一种推帚型遥感摄影模拟装置

A sort of push-broom photographing device imitating remote sensing

遥感摄影在对地观测中的应用日益增多,为了能使更多的人较直观地认识遥感摄影系统,研究开发遥感摄影模拟系统对于在实验室模拟真实遥感摄影系统有重要意义.该模拟装置用普通可见光线阵 CCD 相‘机推帚采集图像,且图像数据无线传输.在电路设计中遵从系统模块化设计思想,提出了以 TI 公司的DSP(TMS320VC5402)和 A7121无线收发模组为核心器件的发射系统和接收系统的设计方案,通过 USB 芯片PDIUSBD12实现了采集电路与计算机的通信.给出了相应的硬件设计和软件流程图,调试结果表明该系统可以满足对图像进行实时采集并显示的要求.

Photographing in remote sensing is increasingly used for observing the earth.Researching and developing photographing device imitating remote sensing is significant for simulating real remote photographing device in laboratory,which can make more people know remote photographing device intuitively.The device utilizes a pushing-broom visible light linear array CCD camera for image collection and data can transmit wirelessly.In circuit designing,system modularization designing idea is obeyed.The scheme of transmitting system and receiving system takes the DSP chip Tms320VC5402 and A7121 module as the core.The collecting circuit can communicate with computer by the USB chip PDIUSBDI2.The corresponding hardware scheme and software flow chart are presented in this paper.The debugging result indicates this system can meet the demand that the image data is collected and displayed in real time.