公开(公告)号：US06618696B1

公开(公告)日：2003-09-09

申请号：US09332129

申请日：1999-06-14

申请人： Richard A. Dean ,  Steven William Roberts ,  Mark George Jacobs ,  Ronald E. Krebs

发明人： Richard A. Dean ,  Steven William Roberts ,  Mark George Jacobs ,  Ronald E. Krebs

IPC分类号： G06G748

CPC分类号： H04W16/22 ,  H04B17/391 ,  H04L1/241

摘要： The present invention is a method of simulating the effects of a plurality of channels on a signal that includes the steps of acquiring a state transition matrix for each of said plurality of channels; acquiring an error matrix for each of said plurality of channels; selecting the first channel to be simulated; assuming that the signal is in a particular state; receiving the signal; generating a first number; determining the state to which the signal transitions; transitioning the signal to the state determined in the last step; generating a second number; determining what errors, if any, to inject into the signal by comparing the second number to entries in the column of the error matrix of the corresponding channel that matches the state of the signal; if one of the errors determined in the last step is lost signal then discarding the signal, not injecting any other error into the signal, selecting another channel if the user desires, assuming that the next signal selected is in the same state to which the previous signal transitioned, returning to the fifth step if another channel is selected, and transmitting the signal if another channel is not selected; and injecting the errors determined in the tenth step into the signal, selecting another channel if the user desires, returning to the fifth step if another channel is selected, assuming that the next signal selected is in the same state to which the previous signal transitioned, and transmitting the signal if another channel is not selected.

摘要翻译： 本发明是一种模拟多个信道对信号的影响的方法，包括以下步骤：获取所述多个信道中的每个信道的状态转移矩阵; 获取所述多个通道中的每一个的误差矩阵; 选择要模拟的第一个通道; 假设信号处于特定状态; 接收信号; 产生第一个数字; 确定信号转换到的状态; 将信号转换到在最后一步确定的状态; 产生第二个数字; 通过将第二数量与符合信号状态的相应通道的误差矩阵的列中的条目进行比较来确定将什么错误（如果有的话）注入到信号中; 如果在最后一步确定的错误之一丢失信号，则丢弃该信号，而不向该信号中注入任何其他错误，如果用户期望，则选择另一个信道，假设所选择的下一个信号处于与之前相同的状态 信号转换，如果选择另一个信道，返回到第五步，如果没有选择另一个信道，则发送信号; 并且将在第十步骤中确定的错误注入到信号中，如果用户期望，则选择另一个信道，假设所选择的下一个信号处于与先前信号转换到的相同状态，则返回到第五步骤，如果选择另一个信道， 如果没有选择另一个信道，则发送信号。