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.
时钟同步和载波同步是接收机的关键问题，传统模拟解调可靠性、稳定性差，调试复杂。
Time synchronization and carrier synchronization are cruxes of receiver. The reliability and stability of traditional analog demodulation are bad, and adjustment is complex.
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.
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.
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.
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.
直接序列扩频接收机对本地载波的同步要求非常严格，以往所需电路复杂。
A direct sequence spread spectrum (DSSS) receiver has strict requirement on local carrier's synchronization, and always needs complex circuits.
在正交正弦相关接收机基础上提出了一种准自适应频率同步方法。
A quasi-adaptive frequency synchronous mechanism based on an orthogonal sinusoidal correlation receiver is proposed.
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.
文中设计的FIR可变分数延迟滤波器用于解决全数字接收机的时钟同步问题。
In this paper, the FIR variable fractional delay filter is designed and used to solve the problem of symbol synchronization of all digital receiver.
在通信系统中，接收机的同步要求精确地估计一些参数，比如载波频率和相位偏移。
In communication systems, the synchronization of the receiver requires to accurately estimate a number of parameters such as the carrier frequency and phase offset.
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.
重采样滤波器设计是全数字接收机中实现符号同步的关键技术之一。
The design of the resampling filter is a key technique for symbol synchronization in all-digital receiver.
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.
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.
如果没有同步脉冲的话，接收机就不能把握住时机来预计下一个数据包的到达时间。
Without a synchronizing pulse, the receiver cannot use timing to predict when the next group will arrive.
位同步检测是实现全数字接收机开环定时恢复的关键技术。
The bit synchronization detect is very important in opened loop timing recovery of all digital receivers.
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.
最后本文扩展性的论证了GPS接收机失锁情况下，对本文所设计的单频网适配器时间同步所产生的影响。
Finally this expansion of the demonstration of the GPS receiver lost lock circumstances, the single frequency network adapter time synchronization of the impact.
在DS - CD MA接收机中，正确解调的首要条件是实现本地扩频码与发送扩频码的码片同步。
Chip timing synchronization between local spread sequence and transmitted spread sequence is critical. in DS-CDMA receiver.
基于混沌同步理论，设计出低噪声的混沌发射机和接收机电路，阐述了实现同步和保密通信的原理。
Based on the theory of chaotic synchronization, a chaotic transmitter and receiver circuit with low noise was proposed, and the principles of synchronization and secure communication were expounded.
设计了在频率域电法勘探中发送机与接收机GPS时间同步电路，实现了多频激电仪接收机与发送机的精确时间同步进行高精度相位测量。
The frequency domain electric transmitter and receiver synchronization electrocircuit has been designed. It is concluded that the GPS time synchronization is feasible in this instrument.
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.
CD MA通信系统接收机的初始同步包括PN码同步、符号同步、帧同步、和扰码同步等。
Initial synchronisms of CDMA communication system receiver include PN code sync, symbol sync, frame sync, sync of scramble code, and so on.
在进行脉冲天线测量时，微波接收机必须与输入的射频脉冲保持同步，使接收机的响应最大，以减少误差、获得最好的测量精确度。
In order to reduce errors and obtain highest measurement precision, microwave receiver must be synchronized with input RF pulse to maximize receiver response.
研究了实现卫星定位接收机终端时间与卫星系统时间保持实时同步的一种异步数据融合方法。
A data fusion method of realizing receiver and sender of satellite location system to keep the synchronization time are presented.
接收机采用了匹配滤波器同步捕获法和包络相关同步跟踪环来实现伪码(PN)的同步。
A synchronous capture method of adaptation filter and related synchronous envelope tracking circle were applied to achieve synchronization of PN by receiver.
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.
然而，最近阶段，由于超强编码技术的出现，传统的同步模式在最新的接收机中很难实现准确的同步。
However, with the recent advent of powerful coding techniques, the conventional synchronization modes have been shown to be unable to properly synchronize state-of-the-art receivers.
本文主要研究了阵列接收机条件下的OFDM系统的同步问题。
In this paper we deal with the problem of timing synchronization of OFDM systems under array receivers.
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