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- Pseudo noise code acquisition PN码捕获
- Study on Technique of Fast Acquisition Pseudo Noise Code in GPS Receiver GPS接收机中伪随机码快速捕获技术的研究
- Keywords Regenerative Pseudo Noise Ranging;Chip Tracking Loop;Tracking performance;Code Acquisition performance;Transponder;I/Q sampling; 再生伪码测距;伪码跟踪环;跟踪性能;码捕获性能;测控应答机;正交采样;
- Research of the Pseudo Noise Code in Pipeline's Detection 管道检测中伪随机码技术应用研究
- Finding pseudo noise code with recurrence method and primitive polynomial 用递推法查找伪随机码和本原多项式
- pseudo noise code 伪随机代码
- general pseudo noise code 广义伪噪声码
- An Improved Method of Acquisition of Pseudo Noise 一种伪码捕获方法的改进
- Spreading spectrum and dispreading spectrum are fundamentals of the Spread Spectrum (SS) communication system, in which construction and selection of Pseudo Noise (PN) code act as main function. 在扩频通信系统中,扩频和解扩是系统的根本,伪随机码序列的构造和选取则是扩频和解扩的关键。
- A spread spectrum receiver then uses the synchronized replica of the pseudo noise sequences to recover the original information. 接收端使用同步的伪随机序列进行相关解调恢复出原始信息数据。
- Computer simulation shows that this algorithm can get rapid PN code acquisition in very low SNR and is easy to be realized in FPGA and DSPs. 实验证明,这种捕获算法易于采用可编程门阵列和数字信号处理器相结合的方式实现,可以在极低的信噪比下实现扩频PN码的快速捕获。
- A new approach called spatial-temporal correlator (STC) for code acquisition and beamforming weight acquisition is proposed for DS-CDMA systems with adaptive array. 提出了空时相关器 (STC)方法实现使用自适应阵列的DS CDMA系统的码捕获和自适应波束形成权值捕获 .
- New York's Mayor Michael R. Bloomberg, in explaining why he wants to toughen New York City's noise code. 纽约市长麦克尔·彭博对其为何要加强噪音管制法规做出如此解释.
- A novel noncoherent approach,based on multi-symbol accumulation-to-PN code acquisition and digital matched filters(DMFs),was proposed to solve the problem. 它在传统单次驻留算法的基础上,用多码元累加来提高码相位判决量的信噪比,从而大大降低了低输入信噪比和低恒虚警约束下的平均捕获时间。
- Two methods of rapid code acquisition based on FFT are presented, one method is based on fractional multiple sampling rate convertor, and the other is based on decimation. 该文提出两种基于FFT的伪码快速捕获方案,一种是基于分数倍采样率转换器的快捕方案;另一种是基于抽取器的快捕方案。
- In order to avoid such problems as symbol sliding, phase shift of pseudorandom noise code and carrier phase offset, an improved method of frequency offset estimation is proposed. 摘要为避免采样频率偏差给卫星导航接收机带来的符号位滑动、伪随机噪声码相位移动和载波相位偏差等问题,提出了一种改进的频率偏差估计方法。
- A new code acquisition method based on phase difference correction of FFT is presented to solve the problem of long code acquisition time in high dynamic DSSS receivers having large frequency offset. 针对大频偏下高动态直扩接收机伪码捕获时间长的问题,提出了一种新的基于FFT相位精确估计频偏的改进方法。
- Based on the characteristics of correlation between PN sequences and received signals, a new method which combines code acquisition and symbol timing recovery for TDS-OFDM receiver is developed. 摘要提出了TDS-OFDM接收机中一种结合PN序列相位捕获的定时同步算法。
- A New DSSS Long PN Code Acquisition Algorithm 一种新的直序列长伪码捕获方案
- A loud noise from the street diverted my attention. 街上一阵喧闹声转移了我的注意力。