Abstract
Voltage Controlled Oscillator (VCO) nonlinearity correction is one of the key technologies for the high resolution linear frequency modulated continuous wave (LFMCW) radar. For the closed-loop correction methods are complex to realize and high-cost, a VCO nonlinearity correction method based on BP network is proposed. Through reverse training the back propagation (BP) network, the control voltage that linear frequency modulated signal needed is gained. And the timing correction policy is introduced to track the change of the frequency-voltage curve caused by elements’ aging and environment changes. Simulation results show the high corrected precision and easier realization of the proposed method.
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Acknowledgments
This paper is supported by National Natural Science Foundation of China (60871098) and Natural Science Foundation of Chongqing China (CSTC, 2011BA2015).
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Mo, Z., Tu, Y., Xiao, W., Shen, Y. (2012). A VCO Nonlinearity Correction Method Based on BP Network . In: Hou, Z. (eds) Measuring Technology and Mechatronics Automation in Electrical Engineering. Lecture Notes in Electrical Engineering, vol 135. Springer, New York, NY. https://doi.org/10.1007/978-1-4614-2185-6_17
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DOI: https://doi.org/10.1007/978-1-4614-2185-6_17
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