单边带
- 网络single sideband;ssb;single side band
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文中介绍了复信号的定义、实调制与复调制、用复低通信号表示带通信号、单边带复调制与解调,以及数字单边带韦瓦复调制在数字化载波机中的应用。
The definition of the complex signal , real modulation and complex modulation , the complex low-pass signal representation of real bandpass signal , SSB complex modulation and demodulation , and the application of digital SSB Weaver complex modulation in the digitized carrier communication are described .
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若船舶不具备VHF通信条件时,也可采用移动电话、传真、单边带通讯等方式进行。
If vessels aren 't equipped with VHF , they can utilize mobile telephone , fax , SSB and so on .
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基于SYSTEMVIEW仿真的单边带调制解调系统
The Modulation and Demodulation Systems of the Single Sideband on the Basis of the System View Emulate
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用DSP实现单边带调制解调的算法实现及性能比较
The SSB Modulation and Demodulation Algorithm with DSP and Their Performance Comparation
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基于DSP的低功耗接收机单边带解调方法
Low Power Receiver Single Sideband Demodulation Based on DSP
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基于DSP的信号单边带调制的实现
Single - side Band Modulation Based on DSP
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基于FPGA的单边带调制解调系统
FPGA-based single-sideband modulation and demodulation system
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讨论了采用DSP实现单边带通信的数字接收机设计技术。
In this paper , realization of digital receiver of single side band communication employed DSP is discussed .
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介绍了采用0.35μMCMOS工艺实现的单边带上变频混频电路。
This paper presents a single side band up-mixer fabricated by SMIC 0.35 μ m CMOS technology .
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ROF系统中单边带光载OFDM信号传输性能研究
Research on performances of single sideband modulated OFDM signals in ROF optical transmission system
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单边带调制ROF链路中交叉相位引起的非线性串扰
Nonlinear Crosstalk Due to XPM in Single-sideband ROF Systems
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着重介绍内插和抽取原理,数字单边带调制原理,以及应用这些原理和DSP技术实现全数字化载波机的方法。
This paper discussed the scheme of interpolation and decimation , the scheme of digital single - side - band modulation , and the implementation of digitized power line carrier equipment .
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现在海上通信系统主要有卫星通信、单边带、甚高频(VHF)。
Now maritime communications systems primarily include satellite communications , single side band , VHF ( VHF ) .
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给出了FM正交解调结构,即在统一的中频数字化硬件平台上,与单边带、调幅等波形一起在基带完成正交解调。
The architecture of FM quadrature demodulation was provided . On the universal IF digitalization hardware platform , FM waveform was demodulated in base-band together with SSB and FM .
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建立理想情况下的基于单边带调制器的循环频移多载波光源系统的偏振分析模型,包括对组成光源的各个光器件如偏振控制器、滤波器、I/Q调制器的模型建立及特性分析。
Building polarization analysis model based on the SSB multi-carrier source system under ideal condition , including some models of the multi-carrier source components such as polarization controller , filter and I / Q modulator . 4 .
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多波长光纤光源的腔外电调谐技术研究1、理论分析了单边带(SSB)调制器的工作原理。
Studies on external electrical tuning of multi-wavelength fiber laser . 1 ) The principle of single-sideband ( SSB ) modulator is analysed theoretically .
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将VMSK/2与模拟单边带抑制载波(SSBSC)调制方式相结合,利用现有的硬件技术,可在射频(RF)传输系统中获得近20比特/秒/赫兹(bits/s/Hz)的频带利用率。
By means of current hardware technique , VMSK / 2 accompanied with SSB-SC can transmit data at 20 bits / sec / Hz through radio frequency ( RF ) transmission system .
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本文论述了电力线载波通信的发展及现状,针对如何在高压电力线中提升通信速率和可靠性的问题,提出了数字单边带与TCM两种实现方案。
The paper discusses the development and application of power line carrier communication technology . Aiming at enhancing the high speed and reliability of the communication on high voltage power line , two schemes : digital single sideband and TCM are proposed .
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从功能上划分为两个子系统,DSP子系统借助Hilbert变换在数字信号处理器平台上实现心音信号的实时频谱单边带调制,使心音取得加强的听觉效果。
According to the function it can be regarded as DSP subsystem and Matlab GUI subsystem . In the former single-band real-time modulation for PCG signal is realized by Hilbert transformation on the DSP platform which enhances acoustical effect of heart sound .
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光单边带信号具有较强的抗色散能力,因此有益于改善WDM-PON和RoF混合接入网的系统性能。
Because the OSSB signal has capacity of dispersion tolerance , it is benefit to use the OSSB signal in the hybrid access network of WDM-PON and RoF .
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在分析双边带和单边带调制的性能后,采用移相法实现RF脉冲的单边带幅度调制,并给出了具体的实现算法和仿真。
After comparing with the performance of double sideband modulation and single sideband modulation , Single sideband modulation based on phasing was used for RF pulse modulation , which can cut down the peak power of RF pulse transmitter and achieve a precise phase .
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本文简述了信号源短期频率稳定度的频畴表征方法,介绍了一个单边带(SSB)相位噪声的自动测试系统。
This paper deals with a method in frequency domain to describe the short - term stabilities of the signal sources , and presents an automatic Test system for SSB phase noise .
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叙述了基于某型PD导引头的通用目标模拟器的设计思路和具体实现方案,着重介绍了系统中所应用的宽带接收、视频回波的单边带调制和高精度功率衰减技术。
Based on a certain pattern , this paper discusses the design guide line and concrete implementation scheme of a general-purpose PD missile header target simulator . Some pivotal techniques are emphasized , including broad-band receiving , SSB modulation of video-frequency echo , and high precision power attenuation .
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方法2002年2月~2004年6月采用单边带关节的超踝关节T型外固定架结合有限内固定治疗19例(21侧)Pilon骨折患者。
Methods From February 2002 to June 2004 , 19 patients with high energy Pilon fractures ( 21 sides ) were treated with a T - shaped unilateral articulated and spanning external fixator in our department .
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对光的单边带归零信号(SSBRZ)的一种产生方式进行了推导。
A method to generate Single Sideband Return-to-Zero Signal ( SSBRZ ) is introduced by deriving formulas .
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本文对采用包给消去并复制(EER)方式的单边带短波发射机中相位均衡和包络均衡的电路进行定量分析。
This paper gives out the quantitative analysis of phase equalizing circuit and envelope equalizing circuit o They are used in SSB short wave transmitter in which the Envelope Elimination and Restoration , EER is adopted .
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分析了RoF系统中双边带调制对系统带来的影响,以及单边带滤波对窄带光纤光栅反射光谱和反射率的要求。
The effect of double sideband on the performance of radio over fiber system is theoretically analyzed , and the requirements of single sideband filtering to reflective spectrum and reflectivity of narrow-band fiber Bragg grating are discussed .
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给出了包含MESFET完整非线性噪声模型在内的振荡器相位噪声分析模型,在此基础上利用改进的非线性电流源法分析了振荡器的单边带相位噪声特性。
A phase noise analysis model of the oscillators , which includes a complete nonlinear noise model of the MESFET , is given and used to simulate the accurate SSB phase noise characteristics of the oscillators .
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针对BOC调制信号相关函数的多峰结构容易造成捕获模糊,提出了3种相应的接收处理方法:类似BPSK的单边带处理方法、峰跳法和一种无模糊跟踪鉴相器算法。
Then presents three kinds of techniques to eliminate the ambiguity of the multi-peak of autocorrelation function to achieve BOC acquisition , which are BPSK like method , bump-jump method and one algorithm of unambiguous tracker for BOC signals .
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研究了一种光纤无线通信系统中用单边带产生光载波并传输的OFDM-ROF方案。
A novel OFDM-ROF system using single sideband modulation technology in radio-over-fiber system to generate optical wave was proposed and experimentally demonstrated .