For Time Difference Of Arrival(TDOA) location based on multi-ground stations scene,two direct solution methods are proposed to solve the target position in TDOA location.Therein,the solving methods are realized in the...For Time Difference Of Arrival(TDOA) location based on multi-ground stations scene,two direct solution methods are proposed to solve the target position in TDOA location.Therein,the solving methods are realized in the rectangular and polar coordinates.On the condition of rectangular coordinates,first of all,it solves the radial range between the target and reference station,then cal-culates the location of the target.In the case of polar coordinates,the azimuth between the target and reference station is solved first,then the radial range between the target and reference station is figured out,finally the location of the target is obtained.Simultaneously,the simulation and comparison analysis are given in detail,and show that the polar solving method has the better fuzzy performance than that of rectangular coordinate.展开更多
A new time of arrival （TOA） estimation algorithm is proposed. The algorithm computes the optimal sub-eorrelation length based on the SNR theory. So the robust of TOA acquirement is guaranteed very well. Then, aceord...A new time of arrival （TOA） estimation algorithm is proposed. The algorithm computes the optimal sub-eorrelation length based on the SNR theory. So the robust of TOA acquirement is guaranteed very well. Then, aceording to the actual transmission environment and network system, the multi-search method is given. From the simulation result, the algorithm shows a very high application value in the realization of wireless location system （WLS）.展开更多
基金Supported by the National Natural Science Foundation of China (No. 60825104,61072107)the National Postdoctor Fundation (No. 20090451251)+1 种基金the Shaanxi Industry Surmount Foundation (2009K08-31)the Fundamental Research Funds for the Central Universities(JY10000-902025) of China
文摘For Time Difference Of Arrival(TDOA) location based on multi-ground stations scene,two direct solution methods are proposed to solve the target position in TDOA location.Therein,the solving methods are realized in the rectangular and polar coordinates.On the condition of rectangular coordinates,first of all,it solves the radial range between the target and reference station,then cal-culates the location of the target.In the case of polar coordinates,the azimuth between the target and reference station is solved first,then the radial range between the target and reference station is figured out,finally the location of the target is obtained.Simultaneously,the simulation and comparison analysis are given in detail,and show that the polar solving method has the better fuzzy performance than that of rectangular coordinate.
文摘A new time of arrival （TOA） estimation algorithm is proposed. The algorithm computes the optimal sub-eorrelation length based on the SNR theory. So the robust of TOA acquirement is guaranteed very well. Then, aceording to the actual transmission environment and network system, the multi-search method is given. From the simulation result, the algorithm shows a very high application value in the realization of wireless location system （WLS）.
