Multi-path input and multi-path output wireless channel monitoring and simulating device

Abstract

The invention discloses a multi-path input and multi-path output wireless channel monitoring and simulating device, which comprises a wireless channel monitor used for acquiring characteristic parameters of a wireless channel in various typical environments and establishing a model according to the characteristic parameters of the wireless channel in the typical environments; a model database which is used for storing a wireless channel characteristic parameter model in a typical environment and configuring parameters; original signals which are used for inputting N different original signals;a wireless channel simulator which is used for simulating a typical channel environment according to the configuration of the model database, so that the original signals are the same as in a real typical channel environment; a wireless channel simulator which adopts N paths of output; an N-channel oscilloscope which is used for observing specific waveforms of N paths of simulated signals; and upper computer software used for processing, analyzing and storing the N paths of output signals. The device has the characteristics of multiple input and output channels, multiple analog channel paths,multiple observable signal change conditions, flexible design and high signal processing speed.

Description

technical field [0001] The invention relates to the technical field of wireless communication and FPGA development, in particular to a multi-input and multi-output wireless channel monitoring and simulation device. Background technique [0002] During the research and development of wireless communication products, it is necessary to study the changes of wireless signals in various typical channels, but these typical channels are not easy to build in the laboratory environment, which requires wireless communication equipment to be tested in the actual environment, which increases the test cost And extend the development cycle. However, the characteristics of the wireless channel are very complex, and the wireless channel will have noise interference and various delay fading effects on the original signal, such as Rayleigh fading, Rice fading, Nakagami fading, logarithmic normal fading, Suzuki fading, etc. If the influence of the wireless channel on the original signal can b...

AI Technical Summary

Problems solved by technology

[0003] Most of the wireless network channel simulation methods used in the prior art use a single channel simulation, and cannot simultaneously simulate multiple paths of multiple channels; and when processing input signals, if there are multiple signals, most of them need to have corresponding multiple channels. The hardware units of the two channels process them separately, and the expansion processing of the input signal is not done, resulting in a waste of hardware resources. Too many hardware units will also cause unstable operation of the equipment.

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