您要查找的是不是:
- 扩频QPSK调制DSSS/QPSK
- QPSK调制QPSK modulate
- 一种达到理论上限的新型扩频序列集A Novel Spread Spectrum Sequence Set up to Upper Bound of Theory
- LMDS中QPSK调制技术的DSPs实现The Implementation of QPSK in LMDS Using DSPs
- 伪码QPSK调制的功率谱分析和实验研究POWER SPECTRUM ANALYSIS AND EXPERIMENTAL RESEARCH OF PN CODE MODULATED QPSK WAVES
- 频域扩频码片级差分检测的误码率性能分析Analysis of the BER Performance of Chip-Level Differential Detection for Frequency Domain Spread Spectrum System
- 高速扩频微波组网技术在防震减灾中的应用Application of the technique of high-speed frequency spread microwave network in earthquake disaster prevention and mitigation
- 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。The effect on modulation and demodulation of QPSK via carrier phase noise can not be ignored, and it is difficult to analyze.
- 频数frequence
- 主频dominant frequency
- 一种电力线载波扩频通信芯片的设计与实现Design and implementation of spread-spectrum IC for data communication over power line
- 倍频frequency doubling
- 其次,介绍了其信号的频段选择、电磁兼容性及其调制和产生的基本原理,包括L5测距码、卷积码、QPSK调制以及Neuman.Secondly, it introduces the frequency selection, EMC(Electromagnetic Compatibility), the basic generation theory and modulation of the third civil signal(L5 signal), including LS ranging code, Forward Error Correction, QPSK modulation and Neuman.
- 载频carrier frequency
- 分频frequency demultiplication
- 而对于QPSK调制信号,在SOI和干扰的频谱重叠部分为SOI总带宽的45%时,CMA-DD FRESH滤波器有大约0.6dB的信噪比改善量。for QPSK-modulated signals, when the spectral overlap between SOI and the interference accounts for 45%25 of the total SOI bandwidth, CMA-DD FRESH filter can improve SNR by 0.6dB.
- 分频器frequency demultiplier
- 混沌扩频技术在CDMA通信系统中的应用研究Research on Application of Chaotic Spreading Spectrum Technology to CDMA Communication Systems
- 从降低解扩电路功耗和提高运算速度两方面考虑,针对采用QPSK调制的宽带码分多址(WCDMA)信号,提出了一种数模混合型解扩方法。To reduce the power dissipation and improve the operation speed, a new mixed analog-digital algorithm for despreading of QPSK modulated WCDMA signals is presented.
- 多进制正交扩频系统中软信息提取电路的实现Implement of Extracting Circuit for Soft-information in M-ary Orthogonal Code Spread-spectrum System