无线信道 Resources

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2. Regarding the Doppler spectrum of wireless channels, please answer the following questions: (1) In certain wireless channels, Doppler frequency shift can cause aliasing in the output signal. Describe the various causes of aliasing; (2) There exists a classic spectrum in wireless channel Doppler spectra. Explain the mechanism behind this spectral shape; (3) Write code using Simulink tools (via S-Function approach) to generate a single-path Rayleigh channel with a classic Doppler spectrum shape, where the mobile speed is 120 km/h. Additionally, answer: Possible methods to verify the correctness of the computer-generated classic spectrum.

MATLAB 240 views Tagged

This MATLAB documentation provides specific calculation methods for the root mean square (RMS) delay spread parameter in LTE wireless channels, establishing connections between multipath channel delays and the RMS parameter. Includes MATLAB implementation approaches using channel impulse response data and statistical delay processing algorithms.

MATLAB 403 views Tagged

(1) In certain wireless channels, Doppler shift can cause aliasing in the output signals. This document analyzes various causes of aliasing and explains the mechanism behind the classic Doppler spectrum. (2) The implementation details include creating a single-path Rayleigh channel with Simulink using S-Function, configured for 120 km/h velocity with classic Doppler spectrum. (3) Validation methods using spectral analysis tools and theoretical comparisons are discussed to verify the generated spectrum's correctness.

MATLAB 281 views Tagged