公开(公告)号：US06426981B1

公开(公告)日：2002-07-30

申请号：US09264916

申请日：1999-03-09

Applicant: Jacques Galbrun

Inventor： Jacques Galbrun

IPC: H03D100

CPC classification number: H04L27/2647 ,  H04L1/0047 ,  H04L1/0054 ,  H04L1/0065 ,  H04L1/208 ,  H04N5/4401 ,  H04N5/455 ,  H04N21/4382 ,  H04N21/6112

Abstract: The soft decisions associated with the quadrature digital signals received are calculated on the basis of at least one parametric law slaved to the minimum value of the rate of erroneous bits. The value is determined at the output of a Viterbi decoder in a microcontroller by varying the parameter of the law. The approach may be applied to applications including terrestrial digital broadcasting according to the DVB-T standard using OFDM modulation.

Abstract translation: 基于接收到的正交数字信号的软判决是基于从属于错误比特率的最小值的至少一个参数律来计算的。 通过改变法律参数，在微控制器中的维特比解码器的输出端确定该值。 该方法可以应用于包括使用OFDM调制的DVB-T标准的地面数字广播的应用。