Signal Modulation System Analysis of Acquisition and Tracking under High Dynamic Conditions

The navigation receiver processes the signals into capture, tracking, and synchronization. At present, the high speed and high acceleration of the flying object cause great difficulty in the modulation of the navigation signal. In order to solve this problem, a method of reading a large number of Chinese and foreign literature, theoretical analysis, and simulation design was adopted. This paper introduces the basic working principle of BOC modulation system, analyzes the time domain and frequency domain characteristics of BOC modulation system, analyzes the tracking ambiguity of BOC modulation system, and proposes two algorithms to solve the tracking ambiguity problem. Finally, the conclusion that BOC modulation system is suitable for navigation signal capture and tracking under high dynamic conditions is obtained.