Receiver rapidly starting-up and positioning method in global positioning system
A technology of global positioning system and quick start, which is applied in the field of global satellite positioning and navigation systems, which can solve the problems of power consumption and cost increase, time-consuming search and capture, etc., and achieve the effect of small chip area cost, low cost, and improved start-up speed
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[0060] In order to make the objectives, technical solutions, and advantages of the present invention clearer, the following further describes the present invention in detail in conjunction with specific embodiments and with reference to the accompanying drawings.
[0061] figure 1 Describes a typical GPS receiver startup process without auxiliary information. The GPS baseband chip is the baseband signal processing chip in the GPS receiver and is the core of the entire GPS receiver. The various methods of the present invention are all implemented in the GPS baseband chip. For convenience, "receiver" in the present invention refers to "GPS baseband chip".
[0062] figure 1 The process shown starts from the receiver power-on initialization 101 and ends when the user position 106 is solved. The term "GPS start time" refers to the time it takes for this process. For the sake of simplicity, in the present invention, various startup times refer to the startup time of the GPS receiver...
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