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JCQ化声器采用稀土小球为催化剂，用正交频带加权优化法优选声器结构参数，取得良好声、化性能。

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.

路通过设置同相支路和正交支路，能够 在处理控制中除载波影响，从而满路非相干性要求。

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

已经完成设计包括一个片上集成可直通式低噪声放大器（LNA）和一个片上集成低频转换式混频器。