公开(公告)号：US07080311B2

公开(公告)日：2006-07-18

申请号：US10259567

申请日：2002-09-30

申请人： Thibault Gallet ,  André Marguinaud ,  Brigitte Romann

发明人： Thibault Gallet ,  André Marguinaud ,  Brigitte Romann

IPC分类号： H03M13/03

CPC分类号： H03M13/47 ,  H03M13/23 ,  H03M13/35 ,  H03M13/37 ,  H03M13/39

摘要： A method of transmitting convolutionally encoded data with separate, independent and looped encoding over at least one data portion. The data is distributed over one or more cycles, and a plurality of cycles can be grouped into packets for discontinuous transmission if necessary. Weighted decoding is effected independently and cycle by cycle: it starts at a robust location, with a relatively high likelihood, and terminates at a weak location, with a weak likelihood, ignoring the concept of time. This limits the size of the packets of errors and prevents the propagation of packets of errors due to scrambling. Independent encoding and decoding of data can be effected without exchanging parameters between cycles and the parameters of each cycle (size, redundancy, constraint length) can be separate. Different degrees of protection and time-delay are permitted as a function of the nature of the data to be transmitted (voice, digital data, signaling, etc.).

摘要翻译： 一种在至少一个数据部分上以独立且独立和循环编码的卷积编码数据发送的方法。 数据分布在一个或多个周期上，并且如果需要，可以将多个周期分组成不连续传输的分组。 加权解码独立地进行循环的循环：它以比较高的可能性开始于鲁棒的位置，并以弱的可能性终止于弱的位置，忽略时间的概念。 这限制了错误包的大小，并且防止由于加扰而导致的错误包的传播。 数据的独立编码和解码可以在不在周期之间交换参数的情况下进行，每个周期的参数（大小，冗余，约束长度）可以分开。 根据要发送的数据的性质（语音，数字数据，信令等），允许不同程度的保护和时间延迟。

公开(公告)号：US06452376B1

公开(公告)日：2002-09-17

申请号：US09714167

申请日：2000-11-17

申请人： André Marguinaud ,  Pierre Bertrand

发明人： André Marguinaud ,  Pierre Bertrand

IPC分类号： G01R2316

CPC分类号： H04L27/3836 ,  H04L27/2276

摘要： A phase-modulated digital signal has N states representing N symbols. The carrier frequency of the signal is estimated through filtering, multiplication of the phase by N, computation of a Fourier transform of the result, and finding the frequency at which the Fourier transform is at a maximum. The frequency can be found by determining the maximum value of the square of the modulus of the Fourier transform and the value of the frequency for which the derivative is zero.

摘要翻译： 相位调制数字信号具有表示N个符号的N个状态。 信号的载波频率通过滤波，相位乘以N，结果的傅立叶变换的计算以及傅里叶变换的最大频率来估计。 可以通过确定傅里叶变换的模数的平方的最大值和导数为零的频率的值来找到频率。