Title: Method and device used for processing signal of base band of high dynamic satellite navigation receiver
Application Number: 200610154771 Application Date: 2006.11.24
Publication Number: 1971304 Publication Date: 2007.05.30
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: G01S5/02;G01S5/14
Applicant(s) Name: Zhejiang University Address:
Inventor(s) Name: Zhao Minjian;Xu Liang;Xu Feng;Zhou Pengyu
Attorney & Agent: zhangfa gao
Abstract:
    The invention discloses a processing method and apparatus used for high dynamic satellite navigation receiver baseband signal. The process of the satellite navigation receiver baseband signal is finished via the separated and parallel trapped engine and the tracing channel under the control of upper machine. When it comes to operation, the intermediate frequency signal enters the trapped engine and the tracing channel by mapping sample: the whole Doppler frequency domain parallel trapped algorithm is finished in the trapped engine, generates the local code sequence aligning with the phase of input signal sequence and transfer it to the tracing channel; in the tracing channel, the signal is accumulated timely and extracted, the bit quantity of the telex information, the monitoring quantity of the sheet deviation and the launching temporal information are provided to the upper machine; after the tracing channel losing lock, the trapped engine recaptures the signal. The invention adopts two-dimensional parallel search to accelerate the trapped speed; the trapped engine duplicates the FFT arithmetic unit, envelope arithmetic unit and detector and saves the resource; the module parameter design is fit for different system and scale.
Time: 8
<- Previous Patent:Simulation algorithm of echo wave...   |  Next Patent:Obstacle detection device ->