The Optimized Parameters Estimation of Electromagnetic Wave with Spaceborne Single Tripole Antenna
Sun Jie①② Zhang Xiao-juan① Fang Guang-you① Liu Yan-bo②③
①(Key Laboratory of Electromagnetic Radiation and Sensing Technology, Chinese Academy of Sciences, Beijing 100190, China) ②(University of Chinese Academy of Sciences, Beijing 100190, China) ③(Academy of Opto-Electronics, Chinese Academy of Sciences, Beijing 100094, China)
It is well-known that restricts on weight and volume of spaceborne sensing instruments are strict. Single tripole antenna usually needs one three-channel receiver to estimate the parameters of electromagnetic waves. When the weight of the receiver is high and the volume is big, channel garbling and gain imbalance exist. This paper puts forward two algorithms based on Time Division (TD) method with tripole antenna for parameter estimation of electromagnetic waves. The two methods make it possible that a single tripole antenna needs only a one-channel receiver, which not only decreases the volume and weight of the receiver, but also reduces the cost and overcome channel garbling and gain imbalance. The simulations prove the validity of the proposed algorithms.
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