A Simulation Method for Shortwave Multi-channel and Multi-bandwidth Channel

Abstract

The invention discloses a short-wave multi-channel multi-bandwidth channel simulation method, including the following steps: (1) inputting characteristic data; (2) inputting an analog signal; (3) sampling the analog signal; (4) obtaining an analytic signal; (5) obtaining mean power; (6) determining whether the mean power is greater than a noise threshold; (7) obtaining a frequency offset-added signal; (8) setting the number of paths; (9) obtaining a multi-path delay signal; (10) obtaining a total fading signal; (11) obtaining a signal-to-noise ratio of each channel; (12) obtaining a noise-added signal; and (13) obtaining an output signal. According to the scheme of the invention, various channel characteristics can be simulated, whether an effective signal input exists can be independentlydetermined, the advantage of simulating different signal-to-noise ratios in different frequency bands can also be realized, and the method disclosed by the invention is suitable for various short-wave communication experiments.

Description

technical field [0001] The invention belongs to the technical field of communication, and further relates to a method for simulating a short-wave multi-channel multi-bandwidth channel in the wireless communication technology. The present invention can be used in various short-wave wireless communication experiments to realize the simulation of short-wave wireless communication channel characteristics, so that developers can conveniently test the performance of short-wave wireless communication systems in a laboratory environment, reducing the development of short-wave wireless communication systems cost and shorten the development cycle. Background technique [0002] Analog wireless communication channel technology mainly refers to the technology of modeling wireless channels and adding multipath delay, multipath fading, Doppler frequency shift and Gaussian white noise to wireless signals. The study of wireless channels is an important part of wireless communication researc...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a more universal short-wave multi-channel multi-bandwidth channel simulation method for the above-mentioned prior art that cannot add noise with different signal-to-noise ratios in different frequency bands. Move and generate multi-channel noise to meet the different requirements for different frequency band noise signal-to-noise ratios, and it is better suitable for various short-wave communication system experiments

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