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Vol. 164, Issue 2, February 2014, pp. 205-210




Model Study of UWB Bioradar for Respiratory Detection

1 XU Hui, 2 REN Jian, 3 LI Bang-Yu

1 Shenyang University of Technology, No.112, No.287-2, Xingshun Street, Tiexi District, Shenyang City, 110023, China
2 Shenyang University of Technology, Box number 591 No.111, Shenliao West Road, Economic & Technological Development Zone, Shenyang, 110870, China
3 Siasun Robot & Automation Co., Shenyang, 110168, China
1 Tel.: 13889116010, fax: 25496349

1 E-mail: rj002691@163.com


Received: 20 November 2013 /Accepted: 28 January 2014 /Published: 28 February 2014

Digital Sensors and Sensor Sysstems


Abstract: In terms of parameters selection and detection in measurement of Ultra Wide Bandwidth stepped frequency bioradar model, stepped frequency interval of emission signal, frequency bandwidth of the intermediate filter (IFBW) and sampling integration time of echo signal are discussed in this paper. These factors impact imaging and human respiratory detection. A novel calculation method of parameters is proposed based on both theoretical and experimental results, which are Fourier transformation analysis method and empirical data, respectively. The stepped frequency interval of emission signal is 14.15 MHz, IFBW<3 kHz and the sampling integration time of echo signal is 15 s which has been shown that reasonable parameter settings can improve image resolution and the echo signal to noise ratio significantly.


Keywords: Human respiratory detection, Frequency interval, Frequency bandwidth of the intermediate filter, Sampling integration time, Biological radar.


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