A Fast Estimation Method for Channel Characteristics and Communication Performance of Space Plasma Clouds

Abstract

The invention discloses a method for quickly estimating channel characteristics and communication performance of space plasma clouds, comprising the following steps: Step 1, calculating the effective area of ​​space plasma clouds; Step 2, estimating the maximum multipath time of space plasma clouds Extension: Step 3, Estimating the maximum Doppler frequency shift of the space plasma cloud: Step 4, Estimating the channel coherence bandwidth of the space plasma cloud: Step 5, Estimating the channel coherence time of the space plasma cloud: Step 6, Estimating the space plasma The maximum communication rate of the plasma cloud: step 7, estimate the communication bit error rate of the space plasma cloud. The method disclosed in the present invention provides an estimation method for channel characteristics and communication system performance including maximum multipath delay, maximum Doppler frequency shift, coherent bandwidth, coherent time, maximum communication rate and communication bit error rate , aiming at the particularity of space plasma cloud channel, it has certain quickness and effectiveness.

Description

technical field [0001] The invention belongs to the technical field of new concept communication, in particular to a fast estimation method of space plasma cloud channel characteristics and communication performance in the field. Background technique [0002] As a supplement to daily communication means, emergency communication has gradually become the focus of global attention. In recent years, there have been many major natural disasters, such as the Indian Ocean tsunami in 2004, the severe blizzard and freezing rain in most parts of southern my country in 2008, and the magnitude 8 earthquake in Wenchuan, Sichuan. Physical damage, the disaster area lost contact with the outside world for a long time, resulting in delays in rescue, resulting in heavy casualties and property losses. Therefore, all countries in the world are actively building and developing their own strategic emergency communication systems. The strategic emergency communication system refers to the fact tha...

AI Technical Summary

Problems solved by technology

Although the ray tracing method can be used to calculate the channel characteristics and communication performance of the space plasma cloud, the ray tracing method has the disadvantages of long calculation time and poor real-time performance.

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