单边带电台在无线通讯方面起着重要的作用。
Single-side band (SSB)transceiver plays an important role in radio communication.
输出产生间接合成技术,产量低单边带相位噪声。
Output is generated by an indirect synthesis technique that yields low single-sideband phase noise.
分析短波通信的特点,了解单边带调制的相关特性;
Present the SSB modulation and some characters of HF communication.
低单边带相位噪声和杂散抑制高所有的通道和阻止测量。
Low SSB phase noise and high spurious rejection for all in-channel and blocking measurements.
还有另外一问题:需要增进调谐到一个单边带信号的技能。
There is one other problem: the increased skill that is needed to tune into an SSB signal.
说明:这是单边带调制源码,求消息信号和已调信号的频谱。
This is a single sideband modulation source, for the signal and the signal has been modulated spectrum.
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.
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).
本文主要分析用正交信号实现单边带混频电路,并阐述其优越性。
This paper analyzed chiefly the circuit of single side-band mixing by use of orthographic signal and described advantages of the mixing circuit.
正交调制的目的是产生单边带RF激发脉冲,以避免激发镜像层面。
The purpose of quadrature modulation is to generate the SSB RF exciting pulse that avoids exciting it's mirror slice.
为了提高某单边带电台的功率性能指标,采用了高效率线性放大系统。
A linear power amplification system of high efficiency is adopted to raise the power performance index of some SSB transceivers.
利用一种不均衡的平行调制器和光滤波器,我们得到线性化的单边带光信号。
By using an unbalanced dual parallel Mach-zehnder modulator (DPMZM) followed by optical filtering, a linearized OSSB signal is obtained.
为更有效地利用短波广播频段,改善其广播质量,单边带制广播提到了议事日程。
For more efficient use of shortwave broadcasting band and improvement of broadcasting quality, single sideband broadcasting has been placed on the agenda.
相位噪声总是具体的,取决于载波偏移,作为相对于载波偏移的一个单边带噪声。
The phase noise is usually specified, depending on the carrier offset, as a single-sideband phase noise referenced to the carrier offset.
现有的车载短波单通道测向设备使用传统测向算法,对单边带信号的测向结果比较差。
Using the traditional algorithm, the vehicular short-wave single-channel direction finding devices can not cope with the single side band signals satisfactorily.
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.
具有节约频带、节约功率、受信道条件影响小等特点的单边带通信方式是很好的选择。
The Single Side band (SSB) which can save the frequency bandwidth, save the power and receive little effect from the channel condition is a pretty choice.
检测双边带信号通过窄带FBG滤波后,成为单边带信号的光谱图,结果基本符合分析预期。
Since results in line with expectations, it preliminarily prove that use of narrow-band FBG to realize SSB in RoF can inhibiting decay caused by dispersion better.
为了提高载波机的有效传输带宽,可采用多路数字韦瓦复调制的原理来实现载波机的单边带调制。
To increase the effectively transmitted bandwidth, digital multiplex channel Weaver complex modulation is employed to implement SSB modulation.
传统的单边带语音通信系统大都是模拟的,实现起来比较复杂,往往由于庞大而不便移动和调试。
Traditional SSB system was analogue, it was difficult to realize, and it always too big to be moved and test.
先进的抗干扰技术——ttib(透明带内导音),它可以抗短波单边带移动电台系统上的多径干扰。
A new technique is described, transparent tone in band (TTIB), which can combat the effects of multipath propagation on single sideband (SSB) mobile radio system is describe in this paper.
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.
分别讨论了在理想假设和实际情况下超外差接收机的双边带噪声系数和单边带噪声系数,给出了单边带接收机的某些设计方案。
This paper discussed the double sideband noise figures and single side band noise figures of the superheterodyne receivers in a ideal hypothesis and the practical case respectively.
莫尔斯测试-如果你是其中一个火腿,其主要运作模式是单边带,那么最简单的方法,以提高您的享受业余爱好是使用化学武器。
Morse test - If you're one of the many hams whose principal operating mode is SSB, then the easiest way to increase your enjoyment of the hobby is to use CW.
振幅调制分为4种方式:AM(普通调幅)、DSB(抑制载波双边带调幅)、SSB(单边带调幅)、VSB(残留边带调幅)。
Amplitude modulation is divided into 4 ways: am (amplitude), DSB (bilateral with carrier suppression modulation), SSB (single sideband modulation), VSB (VSB).
中波单边带立体声广播发射系统,除要求高质量传送信息外,由于其发射功率较大,因此,如何提高发射机效率也是至关重要的问题。
The MW SSB stereo broadcasting system requires high efficiency of the transmitter which usually employs high power amplifier, as the high quality of information transmission is important.
单边带信号在短波频段内十分拥挤,因此要接收单边带信号就需要一个高抗干扰的通信接收机,过去由于器件的落后,直接影响先进方案的实施。
SSB signals become very crowed in short-wave frequency range, so a good anti-noise communication receivers is needed to receive SSB signals.
其思路是将信号先通过单边带调制,将较低频率调制到需要的频率范围;然后采用对基带信号的数字预补偿方法来抑制镜像频率和载波泄漏,从而达到应用的目的。
Then we perform digital pre-compensation method, which can be used in the processing of base band signal to reject image frequency and protect carrier leak to meet the application purpose.
通信仿真平台的任务是对调幅、调频、单边带、二进制振幅键控、二进制频移键控、二进制相移键控、正交相移键控等七种通信信号的调制和解调进行建模和计算。
The target of the communication system flat is modeling and calculating to modulation and demodulation of seven kinds of signals:AM, FM, SSB, 2ASK, 2FSK, 2PSK, 2QPSK.
通信仿真平台的任务是对调幅、调频、单边带、二进制振幅键控、二进制频移键控、二进制相移键控、正交相移键控等七种通信信号的调制和解调进行建模和计算。
The target of the communication system flat is modeling and calculating to modulation and demodulation of seven kinds of signals:AM, FM, SSB, 2ASK, 2FSK, 2PSK, 2QPSK.
应用推荐