Research and Implementation of Beidou-3 Satellite Multi-Band Signal Acquisition and Tracking Method

Chen, Shuhao; Mao, Xiaoyang

doi:10.1007/s12204-019-2115-1

Cited by 7 publications

(2 citation statements)

References 2 publications

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“…e high-speed and programmable characteristics of DSP chip make it very suitable for the field of voice signal processing. e voice processing system based on DSP is the future voice processing system [3].…”

Section: Introductionmentioning

confidence: 99%

Audio Signal Acquisition and Processing System Based on Model DSP Rapid Design

Wang

2022

Security and Communication Networks

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When using DSP technology, technicians can easily and conveniently replace DSP audio processors, make second-party equipment, improve processor performance, reduce application costs, and receive and make music to meet the needs of different signals. Introduces knowledge of speech comprehension, which includes theoretical and cognitive processes, such as pre-speech characterization, final discovery, behavior, structure, and knowledge. By analyzing and comparing various common features, Mel frequency cepstrum coefficient is used to determine the physical features, and the results of traditional algorithms are studied, compared, and evaluated. Research, compare, and evaluate numbers in traditional algorithms. The simulation is based on the algorithms of all the connections used in the system and checks that the algorithm is correct. Design an experimental model, compare the advantages and disadvantages of algorithms and algorithms, consider the process requirements and changes of the whole algorithm, and select the algorithm accordingly algorithm. The experimental results show that the speed recognition of the TW algorithm is not much different from that of the HMM algorithm, and the efficiency of the DTW algorithm in the training models is lower than that of the HMM algorithm. Given the limited resources of the DSP platform in this system, we have chosen the DTW algorithm as the self-reporting system for this system. Finally, the performance of the system is checked and the test results are released. Observations of the experimental instrument showed that the system was effective in being able to recognize small words and discrepancies in speech.

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Section: Introductionmentioning

confidence: 99%

Audio Signal Acquisition and Processing System Based on Model DSP Rapid Design

Wang

2022

Security and Communication Networks

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“…In the coarse and fine composite axis control system, when the main shaft circuit is not stable, the slave axis does not function. 28,29 At this time, the stability error depends entirely on the main shaft, which is equivalent to the single coarse-tracking working state. After entering the composite shaft to work, Eq.…”

Section: Error Analysis Of Coarse and Fine Composite Shaftmentioning

confidence: 99%

Coarse and fine combination technology based on gyrostability and missing target tracking

Liu

Song

et al. 2022

Opt. Eng.

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High-precision, stable tracking technology on a mobile platform is a key technology for realizing the integration of airborne search and tracking. In this study, coarse-fine compound technology based on gyrostabilization and miss tracking is applied. First, the working principle of the coarse and fine composite system is analyzed, and then the coarse and fine composite algorithm is modeled. Thereafter, the error of the coarse and fine composite axis is analyzed, and the precision tracking servo control algorithm is designed. Finally, using the model and algorithm designed to control the single reflector and galvanometer, the coarse tracking of the space target and the fine tracking of the source are completed under the condition that the equivalent sine amplitude is 5 deg and the frequency is 0.2 Hz. At the same time, a test system was built for performance verification. The algorithm achieved a coarse-tracking azimuth-axis tracking accuracy [root mean square (RMS)] of 26.3 μrad and a pitch-axis tracking accuracy (RMS) of 28.9 μrad. After composite tracking was switched on, precision tracking azimuth-axis tracking accuracy (RMS) improved to 7.9 μrad and pitch-axis tracking accuracy (RMS) improved to 6.3 μrad, both better than 10 μrad. This study provides new insights into the stability and precision tracking of single cameras on airborne platforms. At the end of this work, the outdoor experiment to verify the influence of random interference on the system performance under given conditions and the subsequent optimization direction of the system are given.

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Tower Monitoring System Based on BeiDou Navigation Technology

Zhu¹

2020

Advances in Intelligent Systems and Computing

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Research and Implementation of Beidou-3 Satellite Multi-Band Signal Acquisition and Tracking Method

Cited by 7 publications

References 2 publications

Audio Signal Acquisition and Processing System Based on Model DSP Rapid Design

Audio Signal Acquisition and Processing System Based on Model DSP Rapid Design

Coarse and fine combination technology based on gyrostability and missing target tracking

Tower Monitoring System Based on BeiDou Navigation Technology

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