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| Radar Transmitted Waveform Selection for Maneuvering Target Tracking |
| Jin Biao① Jiu Bo① Su Tao① Liu Hong-wei① Zhang Long①② |
①(National Laboratory of Radar Signal Processing, Xidian University, Xi’an 710071, China)
②(College of Electronics and Information, Xi’an Polytechnic University, Xi’an 710048, China) |
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Abstract Firstly, in the framework of the Interacting Multiple Model (IMM) algorithm the constant-velocity model and the adaptive constant acceleration model are selected as the dynamic models for the un-maneuvering and maneuvering states of the un-cooperative target, which is called the adaptive IMM algorithm. Then since it is necessary to consider the performance of estimating range/velocity and Doppler tolerance for tracking a maneuvering target, the V-Linear Frequency Modulated (V-LFM) signal is selected as the transmitted signal in the radar system. The analysis on the Cramer-Rao Lower Bound (CRLB) for estimating the range/velocity and Doppler tolerance of three signals (LFM, V-LFM and M sequence) shows that the V-LFM waveform can effectively improve the performance of estimating the target range and velocity in the case of a bit loss in the Doppler tolerance. The simulations demonstrate that the tracking performance is apparently improved, when multiple pulses of V-LFM waveform is transmitted and the adaptive IMM algorithm is utilized in the radar system.
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Received: 07 November 2013
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Corresponding Authors:
Jin Biao
E-mail: jinpuresky@hotmail.com
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2014, Vol. 36 
