-
公开(公告)号:US20110096632A1
公开(公告)日:2011-04-28
申请号:US11570422
申请日:2005-05-03
IPC分类号: H04B11/00
CPC分类号: H04B11/00
摘要: A robust underwater communication system, for communication between an acoustic signal transmitter and a remotely positioned acoustic signal receiver, wherein transmitted data is carried by a plurality of symbols each having two components one of which comprises a distinctive bit code and the other of which appertains to the character of the symbol as a whole wherein the character of successive symbols is stepped through a predetermined continuously repeating sequence of distinctive steps each of which occurs once in the sequence, the signal receiver being operated synchronously with the signal transmitter and comprising a correlator arrangement responsive both to the bit code and to the character of received signals for effecting demodulation and having a plurality of outputs one for each symbol, so that as each symbol is detected a signal on the output to which it corresponds pre-dominates and amplitude detector means responsive to the outputs from the correlator arrangement for providing an output signal corresponding to the data transmitted.
摘要翻译: 一种强大的水下通信系统,用于声信号发射机和远程定位的声信号接收机之间的通信,其中所发射的数据由多个符号携带,每个符号具有两个分量,其中之一包括独特的比特码,另一个符合 符号作为整体的字符,其中连续符号的字符通过预定的连续重复序列,每个独立步骤在序列中发生一次,信号接收机与信号发射机同步地操作,并且包括相关器装置响应 对于代码和接收到的信号的字符,用于进行解调并且具有针对每个符号的多个输出,使得当检测到每个符号时,其对应的输出上的信号预先占优势,并且幅度检测器装置响应 到相关器排列的输出 显示与发送的数据相对应的输出信号。