The design finished includes a bypassable low noise amplifier (LNA) and quadrature downconverter integrated on chip.

已经完设计包括一个片上可直通式低噪声放大器（LNA）和一个片上低频转换式混频器。

Through installing inphase(I) channel and quadrature (Q) channel, the effect of the carrier can be eliminated in NDLL.Therefore, the noncoherent demand of NDLL is satisfied.

环路通过设置同相路和正路，能够 在处理控制中消除载波影响，从而满足环路非相干性要求。

JCQ depurant-muffler is adopted on 49ZQ engine using small rare-earth element balls as catalyst and took the method of quadrature frequency band optimization to opetmize the configuration parameters.

用于492Q发动机JCQ净化消声器采用稀土小球为催化剂，用正频带加权优化法优选消声器结构参数，取得良好消声、净化性能。