GPS Positioning Solver Algorithm And Research Of Interference Technology

GPS as the world in the most advanced navigation and the positioning system, along with it in the global popularization application, especially in military field's widespread application, more and more becomes the research the hot spot. In modern warfare, GPS has become a precise command and control, precision attack and accurate delivery of key strength, and at all stages of the war affect the war and victory or defeat. Therefore, researching the position and interfere with GPS technology has become imperative.This article carries on the theory in view of the GPS localization resolving algorithm and GPS under the different disturbance environment's system performance to overthrow with the simulation analysis, finally gives the experimental result. The article has two starting points: First, embarks from the military viewpoint, seeks for the technological means which in the future in the war will overcome the enemy; Second, will be future our country develops the independent satellite navigation and the positioning system provides uses for reference. The article first introduced the GPS system's survey and this topic research's background, and has carried on the summary to the existing GPS localization and the disturbance technology. Then, from the GPS positioning solver algorithm to proceed, in analyzing the mathematical model for calculating positioning on the basis of the existing positioning solver computing algorithms exist a large amount of system resources occupied by low and efficiency of many questions put forward two new delivery push solver algorithm, namely Recursive Householder algorithm and the recursive Gram-Schmidt algorithm amendment, combined with recursive least squares method to compare the simulation results show that the new algorithm in the original algorithm to retain the advantages of simultaneously further enhance operator speed and accuracy. Interference of the GPS has a variety of ways, this article on GPS interference in the course of the study, in view of suppression of jamming the way, from the BER point of view, the use of MATLAB software simulation, to draw a given number of interference signals on the GPS receiver the impact of machine bit error rate, compared to draw simultaneously on the best GPS receiver interference suppression jamming Gaussian for narrow-band noise interference. Finally, in analyzing the performance of receiver capture based on the Gaussian noise signal add to deceive the common interference methods to deceive the signal increased the probability of being caught. And noise power ratio from the signal point of view, an analysis of interference on GPS positioning accuracy.