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The ambiguity function properties of continuous random phase modulated signal and its application in medical ultrasonic imaging[KH*2/3D]

FEI Baowei,ZHUANG Tiange (Biomedical Engineering Institute Shanghai Jiaotong University ·200031) BIAN zhengzhong,CHENG Jingzhi (Biomedical Engineering Institute Xian Jiaotong University·710049)  
In traditional pulse medical ultrasonic imaging system, the ambiguity function has periodic distance ambiguity and velocity ambiguity, this affects the image quality and resolution. By using radar theory, this paper has proved that the continuous random phase modulated signal has the optimum ambiguity function, and has put forward the design ideology of random phase modulated medical ultrasonic imaging system. This method is the theory basis of overcoming the distance ambiguity and velocity ambiguity, improving the image quality and resolution and designing new generation medical ultrasonic imaging system.
【CateGory Index】: R445.1
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