At last it discusses the dual-mode transmission technology of the Ultra Narrow Band Modulation and the FM combination.
最后着重讨论了超窄带调制与FM结合的双模式传输技术。
In WCDMA system, downlink base band modulation involves a lot of channels and complex functions, resulting in prolonged time and higher costs for test and verification.
WCDMA中下行链路基带调制信道多，功能复杂，对其测试和验证所花费的时间和费用也随之提高。
Based on the model, the BER Bit Error Ratio performance is analyzed for narrow-band modulation and wide-band spread -spectrum modulation of coherent PSK Phase Shift Key...
结果表明移动卫星信道中存在的多径和阴影现象使系统的误码性能恶化，而采用宽带扩频调制则可极大改善系统的性能。
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。
Operating in the heavy congested SW band, it is difficult for HFradars to find continuously useable waveband for signal modulation.
高频雷达工作在十分拥挤的短波波段内，可资用的能满足信号调制的连续频带很难获得。
A novel induction heating power based on current hysteresis band control and SVPWM modulation technology is introduced in this paper.
介绍了一种新颖的基于电流滞环和空间电压矢量调制(SVPWM)技术的电压、电流双闭环感应加热电源。
The digital modulation applied in the front of HDTV needs good band efficiency and power efficiency.
在数字电视前端采用的数字调制方式需要具有良好的带宽效率和功率效率。
In this thesis, a Broad Band signal generator based on noise frequency modulation for radar is studied.
本课题主要研究了对雷达信号进行干扰的宽带调频噪声信号源。
The optimized GMRF shows excellent performance with narrow band and can be useful for color synthesis and modulation.
设计的三基色滤光片具有良好的窄带反射特性，在彩色合成与调制中有应用前景。
Based on the principle of digital orthogonal modulation, the generation question of wide-band signal is factually identical with how to generate base-band signal with high sampling in time domain.
在数字正交调制原理的基础上，宽带信号的产生问题实际上转换为如何得到高采样率下的时域基带信号。
The intracavity modulation of laser have more merit than extracavity modulation, and can be used in future wide - band optical communication.
激光器的腔内调制与腔外调制相比有许多独特的优点，因而可望在未来的宽带光通信中得到应用。
The generation of modulation wave by wide band multiplier is designed after deep discussion on theory of the modulation wave generation.
在深入探讨调制波的产生原理基础上，设计了一个基于乘法器的调制波发生电路。
Through the application of the photoelastic modulator, the modulation of polarization direction is extended to the ultraviolet band.
将光弹调制器应用在偏振方向的调制中．使现有偏振方向调制技术的光谱范围扩展到了紫外波段。；
The offset quadrature phase-shift-keyed(OQPSK) is an effective digital constant envelope modulation for band-limited nonlinear channel.
偏移四相相移键控（OQPSK）是一种适用于在限带非线性信道中使用的高效恒包络数字调制技术。
Taking the Narrow Band Frequency Modulation(NBFM)as an example, the process of communication question solution by EDA technology is given.
以非线性模拟调制中常见窄带调频为例，完整展现了借助EDA技术分析解决通信问题的过程。
Taking the Narrow Band Frequency Modulation(NBFM)as an example, the process of communication question solution by EDA technology is given.
以非线性模拟调制中常见窄带调频为例，完整展现了借助EDA技术分析解决通信问题的过程。
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