Transformed Auto-correlation

Department of Engineering Physics and Center for Astrophysics, Tsinghua University, Beijing100084, Chinaemail: zhoujf@tsinghua.edu.cn, gaoyang12@mails.tsinghua.edu.cnAbstract. A transformed auto-correlation method is presented here, where a received signalis transformed based on a priori reflecting model, and then the transformed signal is cross-correlated to its original one. If the model is correct, after transformation, the reflected signalwill be coherent to the transmitted signal, with zero delay. A map of transformed auto-correlationfunction with zero delay can be generated in a given parametric space. The significant peaks inthe map may indicate the possible reflectors nearby the central transmitter. The true values ofthe parameters of reflectors can be estimated at the same time.Keywords.methods: data analysis, techniques: radar astronomy