Direct GPS P-code acquisition method based on FFT
نویسندگان
چکیده
منابع مشابه
P-code Generator FPGA Design for Direct GPS P (Y)-Code Acquisition
Direct GPS P (Y)-code acquisition is necessary when GPS C/A code signal is denied. Since the acquisition process is a two-dimensional search in time domain and frequency domain, a successful correlator design with a local P-code generator as reference is very important. As a new programmable technology, FPGA is a good choice for digital system prototyping and design. Especially Xilinx Virtex ch...
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This paper presents a study of FFT-implemented circular correlation and its application to fast direct acquisition of GPS codes. This includes the periodic C/A-codes, practically non-periodic P(Y)-codes, never-repeating cryptographic M-code, and puncture acquisition (PA) codes which have been proposed to aid direct M acquisition as well as overlaid codes which are created by surface-reflected G...
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∗ School of Electrical Engineering and Computer Science, Ohio University, Athens, OH 45701, email: [email protected], [email protected], tel: (740)593-1580, fax: (740)593-0007. Abstract − This paper presents a novel P-code generator design strategy and direct GPS P-code acquisition technique. This method not only helps software simulation and simplifies FPGA hardware desi...
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ژورنال
عنوان ژورنال: Tsinghua Science and Technology
سال: 2008
ISSN: 1007-0214
DOI: 10.1016/s1007-0214(08)70002-6