Furthermore, for engineering purposes such as synchronization and monitoring, it is desirable to get reasonable good estimates of the received source symbols without going through the lengthy decoding process which may be carried out at a remote site at a later time.
In addition, from an engineering viewpoint, when considering applications like synchronization and monitoring, it would be beneficial to have good estimates of the received source symbols without going through the complex decoding process that might occur at a remote location at a later stage.