problems need to be solved 要解决的问题
What problems need to be solved?
需要解决什么问题?
What kind of business problems need to be solved?
需要解决哪些类型的业务问题?
To improve system performance, there are many key technologies need to be solved or improved in OFDM and SC-FDE systems, where channel estimation is one of them.
为了进一步提高系统性能,OFDM和SC - FDE系统都还有很多关键技术需要进一步的解决和完善,信道估计就是其中之一。
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