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- uniform carrier phase system 均匀载波相位系统
- The simulation for QPSK shows that the algorithm can estimate the carrier phase and frequency offset accurately and reduce the system BER effectively. 结果表明,用该算法可以精确估计载波相位和频差,有效地降低系统的误码率。
- A low-cost, highly-accurate GPS carrier phase frequency syntonization system (GPS carrier phase-disciplined oscillator, GPSCDO) based on a single-frequency receiver is presented. 摘要:本论文介绍利用单频接收机及GPS载波相位观测量所组成一低成本且高精度的频率同步系统(GPS载波相位训练振荡器)。
- In this system, FPGA is used as a main logic unit and DSP is used as a digital demodulate unit.The influence of carrier phase delay on demodulation output is corrected. 该系统采用FPGA实现数据的高速采集和逻辑控制,用DSP实现传感信号的全数字解调,分析了载波相位延迟对解调输出的影响并采取了纠正措施。
- A data aided carrier phase acquisition algorithm for OQPSK is studied. 摘要论文研究了一种OQPSK数据辅助式载波相位捕获算法。
- Its advantages are high speed and precision especially in multi phase system. 它在多组份,尤其是多相系统中具有计算速度快、精度高等优点。
- This paper presents the effect of carrier phase error on MC-CDMA performance in downlink mobile communications. 该文对下行无线通信信道中MC-CDMA系统的载波误差性能进行了研究。
- As the name of the new mode says, PSK (phase shift keying) modulates the carrier phase. 正如这种新操作模式的名字所指的,PSK(相移键控)调制载波的相位。
- If the "0" and "1" to change the carrier phase, called phase shift keying (PSK). 如果"0"和"1"来改变载波的相位,则称为相移键控(PSK)。
- This paper introduces a new method of caculating baseline using carrier phase DGPS and then caculating the attitude of the vehicle based on this baseline. 本文介绍了利用差分GPS求解的基线向量,并用此基线向量来确定载体姿态的算法。
- The aging or denaturalization can not happen in the CSP when phase system was transformed, so it has some stability. 所制备的CSP在相体系转化时不发生老化和变性,显示了一定的稳定性。
- The effect on modulation and demodulation of QPSK via carrier phase noise can not be ignored, and it is difficult to analyze. 载波相位噪声对QPSK调制解调的影响是不可忽略的,也是难以分析的。
- Using the nonminimum phase system parameter model transformation of the model for the controller design. 采用了非最小相位系统参数模型转换为参数模型的控制器的设计。
- The key problem of DGPS carrier phase measurements for two moving bodies is how to get a fast ambiguity solution under varying baselines. 摘要GPS双移动载波相位差分技术的关键,是如何实现可变基线条件下整周模糊度的快速解算。
- Here the bit tracking loop,code tracking loop and carrier tracking loop work simultaneously to complete synchronization of data,code and carrier phase. 该方法采用位同步环、码跟踪环和载波跟踪环同时工作,协同完成数据位、伪码和载波相位的同步。
- In direct conversion navigation receiver,due to the IQ mismatch,there will be track error in carrier phase and code phase. 分析了直接下变频导航接收机中,I、Q信号的非正交引起的载波及伪码的跟踪误差。
- For a non-minimum phase system, the interaction of the system is viewed as measurable disturbance and decoupled using feedforward strategy. 针对非最小相位系统,将系统的耦合作用视为可测干扰,采用前馈方法予以消除。
- This paper deals with the equivalence between the ambiguity function me-thod and the least square method with GPS carrier phase observables. 本文主要讨论了GPS相位观测值模糊度函数法处理与最小二乘法处理(如双次差分相位观测值的最小二乘处理方法)的等价性。
- The relationship between aqueous two phase system (ATPS) and liquid crystal (LC) of cationic and anionic surfactants mixture was studied. 研究了正离子表面活性剂CTAB与负离子表面活性剂SDS混合系统的双水相(ATPS)与液晶(LC)结构的关系。
- Study for the matchable combinations of Galileo/GPS carrier phase observations[J].Chinese Journal of Space Science,2006,26 (4):287-291. Galileo/GPS载波相位组合观测值可匹配的研究[J].;空间科学学报;2006;26(4):287-291