色同步信号是为了在接收端恢复与发送端被抑制掉的色副载波同频同相的载波而设置的。
Color synchronous signal is setup to resume subcarrier color signal as same frequency and phase in receive end, which is suppressed in send end.
本发明描述了接收机与扩频信号进行时间同步的方法和系统。
Methods and systems for time synchronizing a receiver to a spread spectrum signal are described.
经实践验证,该系统实现了自动控制接收天线转向并锁定某一个同步通信卫星,以获得最佳的通信信号。
It is proved that this system automatically steers the direction of a receiver antenna and locks a synchronous satellite in order to acquire best communication signal.
在GPS接收机中,为了将本地信号和接收到的信号同步,要完成复杂的信号处理过程。
In GPS receiver many digital signal processing steps must be considered in order to align the incoming signal and local signal.
研究了直扩系统的数学模型,扩频用的伪随机码,扩频信号的相关接收,扩频系统的同步和跟踪等。
The mathematics model of DSSS, PN code, correlative reception of spread spectrum signal, synchronization and tracking are studied.
每年春分和秋分前后几天中,接收同步卫星信号的地面站都会受到太阳辐射的干扰。
Every year, several days before and after the spring Equinox and the Autumnal Equinox, the Synchronous satellite signals received by the earth stations are affected by the solar radiation.
扩频通信系统中,保证本地产生的PN序列与接收信号中的PN序列完全同步,是正确解调信息的关键点。
In the system of spread-spectrum communication, the essential point of demodulating information is to ensure the synchronism of local PN sequence and PN sequence of received signals.
为了从接收到的PCM码中还原出原始信号,阐述了一种由硬件实现帧同步,由串并转换器完成PCM码解调器的高速PCM码解调器电路。
This paper presents a high speed PCM demodulation circuit through which the serial parallel converter plays a role of demodulating and the hardware realizes frame synchronization.
超声内窥镜成像系统主要由超声探头激励电路、回波信号接收处理电路、同步控制电路、接口电路以及计算机构成。
The Ultrasonic Imaging System is made up of probe excitation circuit, receiving and processing circuit, synchronous control circuit, interface circuit and computer.
利用混沌信号作为载体实现信息通讯,其关键问题是发射机系统与接收机系统的混沌同步。
How to synchronize the chaos signals between chaos systems of transmitter and receiver is the key problem of applications of chaos in communication.
数字部分包括低频视频(使接收机与发射机保持同步的脉冲)以及用于高质量立体声的音频信号。
The digital portion includes low-frequency video, the pulses that keep receivers synchronized with transmitters, and the audio signal for high-quality stereo sound.
移动通信系统中的信号传输方法,发射机,接收机和扩展码同步法。
Signal transmission method, transmitter, receiver and expanding code synchronous method in mobile communication system.
在接收方,接收器把LVDS差分信号合成后再还原成原来的视频数据信号、同步信号以及状态指示信号等。
In receiver department, the receiver combined LVDS difference signals and then restored to original video data signal, synchronization signal, state indication signal and so on.
提出三种脉冲混沌同步的新方案,第一种是基于定时周期抽样耦合,并在接收端通过滤波恢复出同步控制信号。
Based on the ideas that the bond waves of chaotic attractor play an important role in chaotic synchronization, three synchronization schemes with simulation results are presented in this paper.
卫星信号的同步包括捕获与跟踪两个过程,同步算法在GPS软件接收机的设计中占有十分重要的地位。
The synchronization of GPS signals plays a key role in the design of GPS software receivers, which consists of two parts called signals' capture and signals' tracking.
为了实现GMSK信号解调,接收机中dsp实现了调制信号的误差频谱估计、位同步恢复及译码。
To demodulate GMSK signal, DSP is used in receiver to achieve error spectrum estimation, bit synchronization recovery and decode.
软件无线电接收机是否能正确的解调接收信号,样值同步是需要解决的基本问题之一,其好坏将直接影响系统性能。
Sample synchronization is a basic problem whether Software Radio Receiver systems can demodulate the received signal correctly, it also affects the performance of the system.
弱信号下的比特同步在GPS的接收机设计中是一个重点也是一个难点。
Under weak signal environments, bit synchronization is very important and difficult in GPS receiver design.
本文研究全数字接收机中的同步技术,重点是MPSK信号的载波频偏和相位误差的估计和恢复算法。
This thesis deals with the synchronization technologies for all digital receiver, particularly carrier offset estimation for MPSK signal.
移动通信系统中的信号传输方法,发射机,接收机和扩展码同步法。
Signal transmitting method, transmitter, receiver and spread-code synchronizing method for mobile communication system.
采用脉冲交错技术使发射机或接收机能同步于收发冲激无线电信号脉冲。
The pulse interleaving technology is adopted to make the transmitter or receiver synchronize with the transmission and the reception of the impulse radio signal pulses.
扩谱通信中一个最基本的任务就是实现本机的伪随机信号与接收的伪随机信号的同步。
In spread-spectrum communication systems, the essential task which has to be performed is the synchronization of receiver pseudonoise (PN) signal with the pseudonoise signal contained in the input.
所述方法包含用可在同步蜂窝式通信模式中操作的用户设备接收同步蜂窝 式通信信号中的日时。
The method includes receiving time-of-day in a synchronous cellular communication signal with the user equipment operable in a synchronous cellular communications mode.
发射和接收单元(5)与时钟同步地将发射数字基带信号转换为发射模拟基带信号。
The transmitting and receiving unit (5) converts the transmission digital baseband signal into a transmission analog baseband signal in synchronization with the clock.
发射和接收单元(5)与时钟同步地将接收模拟基带信号转换为接收数字基带信号。
The transmitting and receiving unit (5) converts the reception analog baseband signal into a reception digital baseband signal in synchronization with a clock.
合并器提供同步信号输入通道,可以接收电站同步信号以同步连接的各采集器。
The combiner provides the input channel of synchronous signal and receives the synchronous signal from the power station and all collectors that are connected synchronously.
当两个半导体激光器可以实现较好的混沌同步时,掩藏在混沌混沌载波中的信息信号在接收端就能被解调出来。
When two SLs can realize good chaos synchronization, messages masked in the chaotic carrier can be extracted at the receiver.
然后,对接收到的信号应用最小均方误差滤波恢复单用户信号波形,从而同时实现了多用户信号分离及频率同步;
Next, minimum mean square error (MMSE) filters are applied to the received signal to recover single user signal wave thus implementing user separation and frequency synchronization at the same time.
GPS接收机中信号捕获通过粗略调整本地复制信号的码相位和载波频率与卫星信号同步。
In a GPS receiver, the signal acquisition coarsely adjusts the code phase and the carrier frequency of locally generated replicas to align with the corresponding satellite signal.
GPS接收机中信号捕获通过粗略调整本地复制信号的码相位和载波频率与卫星信号同步。
In a GPS receiver, the signal acquisition coarsely adjusts the code phase and the carrier frequency of locally generated replicas to align with the corresponding satellite signal.
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