• 通过载波接收机干扰分析提出电路改进办法

    Based on the analysis of carrier receiver limited amplitude interference, provide a way of circuit modification.

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  • 通过载波脉冲信号作频谱分析载波接收机接收载波脉冲信号试验提出选取调制脉冲宽度范围建议。

    Through the spectrum analysis of carrier pulse signals and the test results of carrier receivers, the author proposes further a method for selecting the…

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  • 通过载波脉冲信号作频谱分析载波接收机接收载波脉冲信号试验提出了选取调制脉冲宽度范围的建议。

    Through the spectrum analysis of carrier pulse signals and the test results of carrier receivers, the author proposes further a method…

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  • 时钟同步载波同步接收机关键问题传统模拟解调可靠性稳定性调试复杂

    Time synchronization and carrier synchronization are cruxes of receiver. The reliability and stability of traditional analog demodulation are bad, and adjustment is complex.

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  • 无线移动通信中,接收机本地振荡频率载波频率之间往往存在较大的频率偏差AFC用于克服此频偏。

    In wireless communication system, there is a large frequency bias between carrier frequency and local oscillating frequency. AFC is contributed to eliminate it.

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  • 针对微小卫星测控应答机体积重量及其功能灵活性,研究了接收机载波恢复实现方法

    The implementation method of the receiver carrier recovery loop of microsatellite affects the volume, weight and function reconfigurability of the transponder.

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  • 跟踪频率斜升信号时产生的稳态相差致使环路失锁,接收机无法锁定载波信号。

    Due to steady phase error, low-order PLL has a trouble in tracking frequency ramp signals, so that the receiver cannot lock carrier signals.

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  • 直接序列扩频接收机本地载波同步要求非常严格,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.

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  • 采用综合分析方法从理论上分析了适合于微波载波传输的谐振式光接收机前端特性,提出一整套计算公式

    An general analysis for front end performance of turned optical receiver for microwave subcarrier multiplexed lightwave system was presented. Formulas for front end circuits were deduced.

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  • 本文研究数字接收机中的同步技术,重点是MPSK信号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.

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  • 对于高精度测量导航GPS载波相位周模糊度快速求解仍然个难点尤其对于单频接收机

    GPS carrier phase integer ambiguity fast resolution is still the key issue and challenge for high accuracy survey and navigation, especially for single frequency receiver.

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  • 通信系统中,接收机同步要求精确地估计一些参数比如载波频率相位偏移

    In communication systems, the synchronization of the receiver requires to accurately estimate a number of parameters such as the carrier frequency and phase offset.

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  • 避免过量的传输失真发射机接收机之间带宽至少数字载波调制的带宽。

    To avoid excessive transmission distortion, the bandwidth between transmitter and receiver must be at least twice that with digital carrier modulation.

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  • 推导了GPS接收机中多效应引入最大载波相位跟踪误差闭合形式

    The closed expression form of the maximum carrier phase tracking error caused by multipath effect is derived in this paper based on multipath signal characteristics and GPS receiver work mechanism.

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  • 本文着重研究数字QAM接收机载波恢复环路设计,采用快慢两个数字环路来进行载波恢复。

    The design of the carrier recovery loops in an all-digitized QAM receiver is investigated and two cascaded digital carrier recovery loops are proposed.

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  • 发明涉及正交复用(OFDM接收机补偿载波频率偏移方法系统

    The invention relates to a method and a system for compensating a carrier frequency offset in an orthogonal frequency division multiplexing (OFDM) receiver.

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  • GPS接收机信号捕获通过粗略调整本地复制信号相位载波频率卫星信号同步。

    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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  • 载波数字电视地面广播接收机中,可以采用对接收信号直接进行自适应均衡方案

    For the single carrier Digital Television Broadcasting-Terrestrial receiver, the method of direct adapt equalization can be used.

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  • 分析表明甚至载波线低于谱线该分析器把精密跟踪接收机引导载波而不致错

    It is shown that our analyzer has the ability to guide the receiver to lock on the carrier even when the carrier amplitude is smaller than that of the subsidiary lines of subcarriers.

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  • 接收机信号进行载波恢复解调,通过时序恢复后进行解码

    In the receiver, the received signal is demodulated after carrier recovery. And the demodulated signal is decoded after timing recovery.

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  • 载波跟踪环路设计北斗卫星导航接收机基带处理设计中的关键,环路的跟踪性能基本决定整个接收机中基带处理芯片的性能。

    Carrier tracking loop is the Key in satellite navigation receiver baseband processor design, the performance of the tracking loop decide the entire receiver baseband processor chip.

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  • 然而单频接收机中,使用载波平滑代码算法时,代码-载波差异可以作为一个因数

    However, code-carrier divergence can be a factor when using carrier smoothed code algorithms in single frequency receivers.

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  • 文章介绍了一项针对电力线载波通信数字接收机自动增益控制技术

    This paper introduces the AGC technology used in digital receivers of PLC.

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  • 尤其数字方法恢复单一载波调制格式中的相位偏振接收机端的先进算法进行详细的讨论和分析。

    The principle of several digital phase and polarization tracking algorithms recently proposed and demonstrated for future spectrally-efficient optical transmission system are discussed in detail.

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  • 尤其数字方法恢复单一载波调制格式中的相位偏振接收机端的先进算法进行详细的讨论和分析。

    The principle of several digital phase and polarization tracking algorithms recently proposed and demonstrated for future spectrally-efficient optical transmission system are discussed in detail.

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