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Research on Construction Method of Wavelet Telemetry Data with Improved Threshold Cover

Research on Construction Method of Wavelet Telemetry Data with Improved Threshold

Open Access
|May 2023

Figures & Tables

Figure 1.

Overview of telemetry data processing structure.
Overview of telemetry data processing structure.

Figure 2.

Wavelet threshold method signal reconstruction flowchart.
Wavelet threshold method signal reconstruction flowchart.

Figure 3.

Airspeed raw data, noise data curve change diagram.
Airspeed raw data, noise data curve change diagram.

Figure 4.

Soft threshold method airspeed denoising curve diagram.
Soft threshold method airspeed denoising curve diagram.

Figure 5.

Hard threshold method airspeed denoising curve diagram.
Hard threshold method airspeed denoising curve diagram.

Figure 6.

Hard threshold method airspeed denoising curve diagram.
Hard threshold method airspeed denoising curve diagram.

Three threshold function airspeed data denoising evaluation index value

Denoising Evaluation IndexSoft thresholdHard ThresholdImproved Threshold Function
SSE3046.42721.52477.4
NCC0.9850.9880.990

Improved threshold function wavelet construction method experimental effect evaluation form

Algorithm evaluation indexEngine SpeedAirspeedTemperature DataHumidity Data
SSE4620602477424.68221.835
NCC0.9980.9890.9780.810
Language: English
Page range: 76 - 84
Published on: May 26, 2023
In partnership with: Paradigm Publishing Services
Publication frequency: 4 issues per year

© 2023 Yangyang Sun, Haonan Wang, Shuping Xu, Yueqiu Huang, published by Xi’an Technological University
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.