This article explores the best structure of the receiver in OOK communicative system,Based on the given,an observing model will be made.
本文探讨启闭键控系统在衰落信道中的最佳接收机结构,在给定的模型下,建立了观察模型,利用瑞利衰落分布,导出了最佳接收机的结构。
an unarmed spotter plane
不配备武器的弹着观察机
watchful waiting
待机, 观察, 警戒(as)
A crew member on a military aircraft who makes observations.
观察员军用飞机上进行观察或侦察的机员
oscopic observation
(高速机床试验) 频闪观察
random observation
(在工作抽样中所作的随机观察) 随机观察
rear-view mirro(r mirror in which a driver can see traffic,etc behind him )
后视镜（供司机观察后面情况的）.
The driver began to observe us in the rearview mirror.
司机也开始通过后视镜来观察我们。
An airplane was observed to appear on the screen of radar.
观察到雷达荧光屏上出现一架飞机。
Place your forehead against the camera and look through the viewfinder.
将相机贴在额头,通过取景器观察取景。
a unique opportunity to see and discover.
一个观察和发现的绝好机会。
The pilot made contact with the ship.
飞机员用目力观察着这艘船.
Observations on the Reform of the Breton Woods Institutions
关于布雷顿森林机构改革的几点观察
A Four-year Follow-up Study on Defensive Mechanism of College Students and its Effect on Psychosomatic Health;
大学生心理防御机制的四年随访观察
Observation of the Body Function Condition of the Middle-aged and Old-aged College Teachers;
中老年大学教师身体机能状况的观察
Nutritional Supportive Treatment for Patients with Mechanical Ventilation
机械通气患者营养支持治疗作用观察
Night vision pilotage system for helicopter pilots
直升机驾驶员夜间飞行观察导航系统
Enterprise Information Portal:Evolution Mechanism and Empirical Observations
企业信息门户:演进机制与实证观察
The Clinical Observation about the Opportunity in Shearing Card to 110 New Born
110例新生儿剪脐时机的临床观察