Novel 10 GHz Bio-Radar System Based on Frequency Multiplier and Phase-Locked Loop
| Autor: | Byung-Jun Jang, Yong-Jun An, Seong-Sik Myoung, Jong-Gwan Yook, Jun-Ho Moon |
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| Rok vydání: | 2010 |
| Předmět: |
Frequency synthesizer
Engineering business.industry Frequency multiplier Superheterodyne receiver Electrical engineering law.invention Phase-locked loop Voltage-controlled oscillator law Hardware_INTEGRATEDCIRCUITS Electronic engineering Continuous wave Multiplier (economics) Hardware_ARITHMETICANDLOGICSTRUCTURES business Digital signal processing |
| Zdroj: | The Journal of Korean Institute of Electromagnetic Engineering and Science. 21:208-217 |
| ISSN: | 1226-3133 |
| DOI: | 10.5515/kjkiees.2010.21.2.208 |
| Popis: | This paper presents a novel 10 GHz bio-radar system based on a frequency multiplier and phase-locked loop(PLL) for non-contact measurement of heartbeat and respiration rates. In this paper, a 2.5 GHz voltage controlled oscillator (VCO) with PLL is employed to as a frequency synthesizer, and 10 GHz continuous wave(CW) signal is generated by using frequency multiplier from 2.5 GHz signal. This paper also presents the noise characteristic of the proposed system. As a result, a better performance and economical frequency synthesizer can be achieved with the proposed bio-radar system. The experimental results shows excellent bio-signal measurement up to 100 cm without any additional digital signal processing(DSP), and the proposed system is validated. |
| Databáze: | OpenAIRE |
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