英语翻译The MWC can operate with as few as p = 2N channels and w

英语翻译
The MWC can operate with as few as p = 2N channels and with a sampling rate fs = 1
/T > B on each channel,
so that it approaches the minimal rate of 2NB.Advanced configurations enable additional hardware savings by
collapsing the number of branches p by a factor of q at the expense of increasing the sampling rate of each channel
by the same factor [109].The choice of periodic functions pi(t) is flexible:The highest Dirac frequency needs
to exceed fmax.In principle,any periodic function with high-speed transitions within the period T can satisfy
this requirement.One possible choice for pi(t) is a sign-alternating function,with M = 2L + 1 sign intervals
within the period T [109,161].Imperfect sign alternations are allowed as long as periodicity is maintained [9].
This property is crucial since precise sign alternations at high speeds are extremely difficult to maintain,whereas
simple hardware wirings ensure that pi(t) = pi(t + Tp) for every t 2 R.The waveforms pi(t) need low mutual
correlation in order to capture different mixtures of the spectrum.Popular binary patterns,e.g.,the Gold or Kasami
sequences,are especially suitable for the MWC [161].Another important practical design aspect is that the lowpass
filter h(t) does not have to be ideal.A nonflat frequency response can be compensated for in the digital domain,
using the algorithm developed in [162].

能操作的MWC很少p = 2 N渠道和采样率fs = 1
B / T >每一个频道,
所以很接近的最小速度2 NB的.先进配置使额外硬件储蓄
分支机构的数量磷崩溃的一个因素问费用提高采样率每个通道的
由同一因素[109].周期函数的选择pi(t)是柔性:最高的狄拉克频率的需要
超过fmax.原则上,任何周期函数的期限内高速转型T才能满足的地方
对这方面的要求.一个可能的选择为pi(t)是一个sign-alternating作用,用M = 2 L + 1签署间隔
在周期T[109条,161条].不完美的标志是允许的,只要交替周期保持[9].
这个属性是至关重要的,因为精确交替标志以很高的速度是非常难以维持下去,而
确保硬件简单式pi(t)= pi(t + Tp)每吨2 r波形pi(t)需要很低的相互影响
相关为了占领的不同组合光谱.受欢迎的二进制模式,如金或Kasami
序列,特别适合MWC[161].另一个重要的实际设计方面是低通
过滤器h(t)不需要的理想.一个nonflat频率响应可以补偿在数字域,
在使用算法[162