Title :
An Analytic Method for Doppler Changing Rate Based on Frequency Measurement - A Formula of Doppler Direct Ranging
Author_Institution :
China Nat. Aeronaut. Radio Electron. Res. Inst., Shanghai, China
Abstract :
An analytic method solving Doppler changing rate is presented only by measuring Doppler shift or measured value of frequency. On condition that aerial vehicle is uniform motion, a Doppler direct ranging formula can be firstly derived by making use of the velocity vector identity, the relation between Doppler changing rate and tangential velocity as well as the specific value of Doppler changing rate at neighbor node. As soon as this ranging formula is substituted into the expression of Doppler changing rate, the analytic formula solving Doppler changing rate can be obtained. The analog calculation shows that the relative error derived formula is less than 0.01%.
Keywords :
Doppler radar; Doppler shift; frequency measurement; radar tracking; Doppler changing rate; Doppler direct ranging formula; frequency measurement; velocity vector identity; Distance measurement; Doppler shift; Frequency estimation; Observers; Doppler changing rate; electronic reconnaissance; frequency measurement; single observer location and tracking;
Conference_Titel :
Communications and Intelligence Information Security (ICCIIS), 2010 International Conference on
Conference_Location :
Nanning
Print_ISBN :
978-1-4244-8649-6
Electronic_ISBN :
978-0-7695-4260-7
DOI :
10.1109/ICCIIS.2010.41