Quick alignment method based on reverse solution arrangement
A moving base alignment and fast technology, applied in the direction of measuring devices, instruments, etc., can solve the problems of unusable data, small amount of storage and calculation, waste, etc., to ensure alignment accuracy, improve alignment efficiency, Effect of Alignment Accuracy Improvement
Inactive Publication Date: 2020-04-17
CHONGQING HUAYU ELECTRIC GRP
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Problems solved by technology
[0003] At present, the conventional alignment method is one-time processing in the forward direction according to the time sequence, and the data is discarded after processing without storage. Insufficient information mining, resulting in waste, and the alignment accuracy is not high
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[0032] The present invention will be further described in detail below in conjunction with the accompanying drawings.
[0033] Such as figure 1 As shown, the present invention discloses a fast alignment method based on reverse calculation arrangement, including the following steps:
[0034] S1. After the system is started, collect the gyro acceleration information within the preset time, and continue to use the gyro acceleration information collected within the preset time for rough alignment;
[0035] S2. Store the gyro acceleration information collected within the preset time, and continuously collect and store the gyro acceleration information after the preset time;
[0036] S3. Extract the gyro acceleration information from the storage space according to the order of collection time and perform fine alignment until the finely aligned gyro acceleration information is synchronized with the collected gyro acceleration information.
[0037] In the present invention, the hard...
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The invention discloses a quick alignment method based on reverse solution arrangement, which comprises the following steps: acquiring gyro acceleration information within a preset time, and performing coarse alignment by continuously utilizing the gyro acceleration information acquired within the preset time; storing the gyro acceleration information acquired within the preset time, and continuously acquiring and storing the gyro acceleration information after the preset time; and extracting the gyro acceleration information from the storage space according to the sequence of the acquisitiontime, and carrying out fine alignment until the finely aligned gyro acceleration information is synchronous with the acquired gyro acceleration information. According to the invention, the coarse alignment data is used for fine alignment, and the subsequent data is continuously used for fine alignment, so that the alignment precision is improved. Moreover, the alignment precision can be ensured only by performing fine alignment on subsequent data, and all data do not need to be aligned twice, so that the alignment efficiency of the subsequent data is improved, and the real-time performance ofalignment can be ensured after the alignment process is started for a period of time.
Description
technical field [0001] The invention relates to the technical field of embedded device application and inertial navigation, in particular to a fast alignment method based on reverse calculation and arrangement. Background technique [0002] With the update of weapon systems and the diversification of combat forms of weapon systems, the demand for alignment time of navigation systems is increasingly urgent, so it is urgent to study rapid alignment technology in a short period of time. Under the condition of the same device accuracy, the initial alignment accuracy and alignment time are the technical indicators to measure the initial alignment effect of the device. [0003] At present, the conventional alignment method is one-time processing in the forward direction according to the time sequence, and the data is discarded after processing without storage. Insufficient information mining leads to waste, and the alignment accuracy is not high. [0004] Therefore, how to impro...
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IPC IPC(8): G01C25/00
CPCG01C25/005
Inventor 粟伟刘晓东王福亮袁野于志鋐罗先泉
Owner CHONGQING HUAYU ELECTRIC GRP