首页>
外国专利>
A METHOD TO GENERATE A WIRELESS WAVEFORM FOR USE IN A WIRELESS COMMUNICATION SYSTEM, A WIRELESS COMMUNICATION SYSTEM AND COMPUTER PROGRAM PRODUCTS THEREOF
A METHOD TO GENERATE A WIRELESS WAVEFORM FOR USE IN A WIRELESS COMMUNICATION SYSTEM, A WIRELESS COMMUNICATION SYSTEM AND COMPUTER PROGRAM PRODUCTS THEREOF
展开▼
机译:产生用于无线通信系统中的无线波形的方法,无线通信系统及其计算机程序产品
展开▼
页面导航
摘要
著录项
相似文献
摘要
The method comprises the generation of a waveform for application in the wireless communication system characterized by significant phase noise, Doppler spread, multipath, frequency instability, and/or low power efficiency by at the transmitter side: creating a discrete-time instantaneous frequency signal f̃[n]; appending a cyclic prefix with length LCP to the beginning of the discrete-time instantaneous frequency signal f̃[n] ; constructing a discrete-time unwrapped instantaneous phase φ[n]; constructing a discrete-time complex baseband signal, and appending at the beginning a Constant Amplitude Zero Autocorrelation, CAZAC, signal of length LCP for multipath detection; and passing the constructed discrete-time complex baseband signal through a digital-to-analog, DAC, converter to yield the continuous-time radio frequency signal s(t) after conversion to the carrier frequency.
展开▼
机译:该方法包括通过在发送器端生成具有显着的相位噪声,多普勒扩展,多径,频率不稳定性和/或低功率效率的特征在无线通信系统中应用的波形:创建离散时间瞬时频率信号< I> f̃ I> [ n I>];将长度为 L CP Sub> I>的循环前缀附加到离散时间瞬时频率信号 f̃ I> [ n I> ];构造离散时间解缠的瞬时相位φ[ n I>];构造一个离散时间的复杂基带信号,并在开始时附加一个长度为 L CP Sub> I>的恒定幅度零自相关CAZAC信号以进行多径检测;并将构造的离散时间复基带信号通过数模DAC转换器,以产生转换后的连续时间射频信号 s I>( t I>)到载波频率。
展开▼