Millimeter Wave Radiometer Design And Implementation Of The Display And Control Terminal Software

The Passive Millimeter Wave Radiometer Imaging System is a high sensitivity receiver which use for measuring object's microwave heat radiation., it is composed of antenna subsystem, servo control unit, data collecting unit, data processing unit, data storage and display control unit.At the early period, Passive Millimeter Wave Radiometer is used in astronomy research, to measure the radio emission of the Galaxy and other galaxies. Then many airborne or spaceborne millimeter wave radio measure remote sensor were uesd for environment research widely. In recent years, people have a growing repect of using Passive Millimeter Wave Radiometer to detect dangerous target, security check, scene control, landing.The early Radiometer Imaging System usually adopted PC as display and control terminal, which was huge, wasn't integrated and miniaturized. The radiometer isplay and control terminal described in this article uses embedded system as development platform. Embedded system has features of small in size, strong performance, low power consumption, high reliablity, and oriented to industrial applications, which has widely used in minitary defence, electronics, network communication, industrial control, and various fields. As opposed to traditional Radiometer Imaging System, the radiometer isplay and control terminal described in this articl has many adventages such as small, low lost, good maintainability.The usual Passive Millimeter Wave Imaging System's display and control system use PC which install Windows. This kind of machine's cubage is huge, doesn't have the integration and miniaturization features, which is gradually replaced by embedded system. The series of ARM9 processor has many advantages such as high dependability, good stability, low power consumption, easy to integrate and so on, so it is used more and more.This display and control terminal adopts SAMSANG S3C2440 processor as its central processor, after customizing ARM-Linux(2.6 kernel), porting and compile relative drivers, has finished this GUI. Particular research content and result is as follow:1) According to the system total precept and qualification, combine to the embedded system's feature, decide the design pattern of display and control terminal, select the type of hardware platform and software operating system.2) Accomplish the bottom configure of operating system, including compile and configure the ARM-Linux's BIOS, cut out the kernel and port it, make the ARM-Linux's root file system.3) Port relative drivers, and accomplish the interface driver between signal processor and scanning servo system.4) Complete the GUI of display and control terminal, which can receive image data, display image, contrast image, and control all system.5) Accomplish the unite test of display and control terminal and the entire system, including the communication with signal processor and scanning servo system. The result of unite test meets the requirement of the Passive Millimeter Wave Radiometer Imaging System.