Channel parameter joint estimation method, system, equipment, medium and product

By employing a dual-sampling-rate signal acquisition and joint estimation strategy, the performance limitations of existing Doppler frequency shift estimation methods in extremely low signal-to-noise ratio environments are addressed. This approach achieves high-precision Doppler frequency shift and signal-to-noise ratio estimation, simplifies the calculation process, and improves system stability.

CN122204599APending Publication Date: 2026-06-12VERISILICON MICROELECTRONICS (NANJING) CO LTD +2
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Patent Information

Application Number
CN202610677591.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-05-18
Publication Date
2026-06-12

AI Technical Summary

Technical Problem

Existing Doppler frequency shift estimation methods have limited performance in extremely low signal-to-noise ratio environments, and traditional estimation methods suffer from large errors, high computational load, and poor stability, making them difficult to implement in practical systems.

Method used

A dual-sampling-rate signal acquisition method is adopted. By quantitatively relating the Doppler frequency shift estimation bias caused by noise to the signal-to-noise ratio, a joint estimation strategy is constructed. The dual sampling rate is used to transform the adverse effects of noise into beneficial information, thereby achieving high-precision channel parameter estimation.

Benefits of technology

It achieves high-precision Doppler frequency shift and signal-to-noise ratio estimation in extremely low signal-to-noise ratio environments, simplifies the calculation process, reduces system complexity, and improves the stability and accuracy of the estimator.

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Abstract

The invention provides a channel parameter joint estimation method, system and device, a medium and a product, and relates to the technical field of communication, a channel estimation sequence is processed by presetting a first sampling period and a second sampling period which are different, so that a first estimation value and a second estimation value with deviation of a first channel parameter are correspondingly obtained; and constructing an estimation method based on the quantitative relationship among the first estimation value, the second estimation value and the sampling period, inputting the obtained estimation values and the sampling periods into the constructed estimation method, and respectively determining the estimation values of the real first channel parameter and the real second channel parameter of the current communication link. According to the invention, the technical effect of estimating a plurality of channel parameters with high precision by using a single estimator in an extremely low signal-to-noise ratio and high-speed moving scene is realized.
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