Selection of active outdoor infrared detectors, active infrared transmitter sent a bouquet of the infrared beam by the modulation, into the infrared receiver to form a cordon.
室外选用主动式红外探测器，主动红外发射器发出一束经调制的红外光束，投向红外接收器，形成一条警戒线。
Automatic identification of the modulation type of a signal has found applications in many areas, especially important for military software radio interception receiver.
自动调制方式识别应用范围广泛，对于军用软件无线电侦察接收机更具有十分重要的意义。
The optimum receiver performance of a hybrid pulse phase and position modulation(PAPM) over ultra-wideband(UWB) indoor fading channel model is analyzed.
分析了UWB室内衰落信道模型下脉冲幅度位置混合调制（PAPM）最优接收机性能。
Firstly, the waveforms of UWB signal and their modulation modes, signal processing of receiver are introduced and compared. The method for generation of UWB narrow pulse is reviewed.
首先介绍并比较分析超宽带信号的波形、调制方式和接收机信号处理方法，讨论了超宽带窄脉冲的产生方法。
The structure of receiver in typical modulation Impulse Radio Ultra Wide Band (IR-UWB) is discussed, and the best IR-UWB receiver on AWGN cannels is given.
在分析AWGN信道特性的基础上，通过研究典型调制方式下的超宽带冲激无线电信号(IR -UWB)的接收机结构，找到了一种IR - UWB最佳接收机。
In order to make a research on the software radio, this thesis focuses on key techniques for radio receiver including: DDC technology, the channelization model, modulation and demodulation algorithm.
为了对软件无线电进行探索性研究，本论文主要研究了软件无线电接收机中的部分关键技术：包括数字下变频算法，多通道并行接收的信道化模型以及调制解调部分的实现。
To avoid excessive transmission distortion, the bandwidth between transmitter and receiver must be at least twice that with digital carrier modulation.
为避免过量的传输失真，发射机与接收机之间的带宽至少要两倍于数字载波调制的带宽。
The receiver can estimate all the parameters needed for demodulation using blind estimation algorithms and recognize the modulation type using the MC algorithm proposed above.
该系统可以在完全未知信号参数的情况下，应用各种盲估计算法进行信号参数估计，以及进行调制方式识别。
This function is used to forward link IS-95 system simulation, including the spread spectrum modulation, matched filter, RAKE receiver, and other related communication module.
此函数用于IS-95前向链路系统的仿真，包括扩频调制，匹配滤波，RAKE接收等相关通信模块。
In the receiver, through the appropriate RC or LC network can filter out square wave and high frequency modulation signal for simulating the reduction form.
在接收端，通过适当的RC或LC网络可以滤除调制高频方波并将信号还原为模拟形式。
We have discovered that the signal freguency receivered driffes off and small in making up the receiver of 882F freguency modulation.
在882F调频接收机组装过程中发现，调频接收频率偏小。
This function is used to forward link IS-95 system simulation, including the expansion of frequency modulation, matched filter, RAKE receiver, and other related communication module.
此函数用于IS- 95前向链路系统的仿真，包括扩频调制，匹配滤波，RAKE接收等相关通信模块。
Two mathematic models of software radio receiver are introduced and they provide theoretic basis for designing multi-modulation scheme software radio receiver.
首先介绍了两种软件无线接收机的数学模型，为多制式软件无线电接收机的设计提供了理论依据。
This method provides the reference for testing and debugging IF receiver, and ends the condition that only performance determination and simple checking can be executed in TT&C modulation.
该方法对检验中频接收机的工作性能及调试有着指导意义，结束了遥测解调性能只能定性、粗略检查的现状，为主战设备选取提供了理论依据。
In order to decrease the mirror frequency interference, cross interference and inter-modulation interference, double IF (Intermediate frequency) is adopted in the receiver.
为了降低镜频干扰、交调和互调干扰，接收机采用了双中频方案。
This thesis is concerned with the study of designing multi-modulation scheme software radio receiver.
本文对多制式软件无线电接收机的设计进行了研究。
Single-modulation scheme software radio receiver is designed by studying software design and hardware design.
通过对硬件设计和软件设计两个方面的研究，设计了单制式软件无线电接收机。
Single-modulation scheme software radio receiver is designed by studying software design and hardware design.
通过对硬件设计和软件设计两个方面的研究，设计了单制式软件无线电接收机。
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