Optic cable is ideal when wideband transmission channel is required to implement realtime dual transmission of bureau, mine remote picture and image.
局、矿远程图形、图象实时双向传输需要宽频带的传输信道，光纤光缆信道是理想的选择。
2
The requirements for the wideband services in a up stream channel are fist studied, and used as the criteria to compare the transfer ways each other used in up stream channel.
论文首先探讨了宽带业务对上行信道的要求，以此作为比较上行信道的传输方式优劣的标准。
3
Based on an auxiliary time-delay channel and ESPRIT approach, a new algorithm for wideband frequency estimation with sub-Nyquist sampling was proposed.