A Research on 10.525GHz Microwave Motion Sensor

• Main Authors: Chen, Chien-An, 陳建安
• Other Authors: Chih-Hu Wang
• Format: Others
• Language: zh-TW
• Published: 2015
• Online Access: http://ndltd.ncl.edu.tw/handle/12391009034174831989

碩士 === 中華大學 === 電機工程學系碩士班 === 103 === In this thesis, we use the Doppler Effect to develop X-band motion sensor, using microwave to detect the movement of an object. Because it will not be disturbed by the environment and has high sensitivity, the user does not require regular maintenance. Not only suitable for infrared sensor to supplement, our sensor is also suitable for outdoor areas surveillance. Our works contain the research motivation, research processes, systems architecture, specifications, circuit design and systems test. The hardware structure includes consisted of a power supply circuit, RF circuit, and signal processing circuit. We use spectrum analyzer to measure the center frequency which is allocated around 10.157 to 10.160 GHz. This motion sensor can measure the moving objects within three meters and detect 3 to 72Hz Doppler frequency offset.