Micro-power consumption GPS signal processing method
A GPS signal and signal processing technology, applied in satellite radio beacon positioning systems, measuring devices, instruments, etc., can solve problems such as high power consumption, and achieve the effect of reducing power and power consumption
Active Publication Date: 2018-01-23
成都芯软科技股份公司
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Therefore, the above-mentioned operations cause the acquisition and processing of GPS signals to consume more power
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[0021] Such as figure 1 As shown, the preferred embodiment of the present invention provides a kind of micro-power consumption GPS signal processing method, and in this method, the processing of GPS signal utilizes CPU as processing device, promptly the present invention is a kind of CPU-based micro-power consumption GPS signal processing method.
[0022] According to a preferred embodiment of the present invention, the micro-power consumption GPS signal processing method comprises the following steps (1) and steps (2):
[0023] Step (1): In the first GPS signal processing mode, establish a correspondence between GPS signals and time and store records related to GPS signals as historical records.
[0024] This step (1) is a self-learning process in the method. In this self-learning process, it specifically includes:
[0025] (1.1) In the first GPS signal processing mode, collect the first three-dimensional acceleration information;
[0026] (1.2) collect GPS information, a...
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The invention provides a GPS signal processing method of micro power consumption, and aims at overcoming the problems at present vehicle GPS collection and processing need frequency communication with a GPS satellite as well as a lot of repeated computation and further cause power consumption. According to the method of the invention, a CPU serves as a processing device for processing GPS signals, and the method comprises the following steps that (1) in a first GPS signal processing mode, correspondence between GPS signals and time is established, and record related to the GPS signals is stored and serves as historical record; and (2) in a second GPS signal processing mode, second 3D acceleration information is collected, and the different GPS signal processing manners are determined according to the correspondence established in the step (1) and the collected second 3D acceleration information. The method can be used to reduce the communication frequency between a GPS receiver and the GPS satellite, and further to greatly reduce power consumption required by collecting and processing the GPS signals; and it is provided that via the GPS signal processing method, the power consumption can be reduced by 70-80% than before.
Description
technical field [0001] The present invention relates to the technical field of GPS signal acquisition and processing, and more particularly, to a GPS signal processing method with low power consumption. Background technique [0002] The speed of the GPS satellite relative to the receiver is constantly changing with time, and the Doppler frequency offset introduced by it is also constantly changing, so the GPS baseband receiver must constantly track the Doppler of the carrier and spreading code offset; the GPS baseband receiver also generates a local spread spectrum code, and uses the good autocorrelation characteristics of the Gold code to synchronize the local code and the satellite spread spectrum signal; the GPS baseband receiver obtains the satellite from the reproduced local spread spectrum code to receive The pseudo-range between the aircraft can be used to solve the coordinates of the receiver. In addition to the above calculations, a general GPS tracker relies heavi...
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IPC IPC(8): G01S19/37G01S19/34
CPCG01S19/34G01S19/37
Inventor 葛辉
Owner 成都芯软科技股份公司