Knowledge in ERROR CONTROL

ERROR CONTROL CODING AND CRYPTOGRAPHY

Reed Solomon Codes – Reed-Solomon Error Probability, Why R-S codes perform well against burst noise, R-S performance as a function of size, redundancy and code rate. Interleaving and Concatenated Codes- Block interleaving, Convolutional Interleaving, Concatenated Codes, Coding and Interleaving Applied to the Compact Disc, Digital Audio Systems- CIRC encoding, CIRC decoding, Interpolation and muting. Turbo Codes- Turbo code Concepts, log-likelihood Algebra

control loop reduction

Closed loop control, also known as feedback control, eliminates the shortcomings of open loop control. Here, the response or the actual result is continuously compared with the desired result, and the control output to the process is modified and adjusted to reduce the deviation, thus forcing the response to follow the reference. Effects of the disturbances (external and/or internal) are automatically compensated for. This scheme is superior, complex, and expensive. It is used for more demanding applications and is commonly applied in continuous process automation as discussed in forthcoming sections.