The LO phase noise, LO-RF port isolation of the mixer in the front-end and their effect on the detectability of the radiometer were analyzed in this paper.

分析了前端部件中本振源相位噪声和混频器本振射频端口隔离度对系统探测性能的影响，指出在距离较近时影响明显。

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A lighting apparatus has a housing and is disposed at a lower end of a front fork of a motorcycle with good appearance effect and easy installation effect.

本发明提供一种机动二轮车用照明器，其被设置在前叉的下端部，可谋求具有良好的外观效果且容易安装。

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In the silencer of the prior art, the front end and the rear end of a silencing component are both planes so that pressure loss is increased and noise reduction effect is poor.

现有技术的消音器中，消音间劈前后端均采用平面，使压力损失增大，降噪声的效果不好。

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