Computer simulation is becoming an increasingly critical area in communications systems engineering as practitioners strive to maximize accuracy and efficiency, while speeding up project time. This authoritative, one-stop resource presents the essentials of communications systems analysis and simulation. Written in a straight forward, easy-to-understand manner, the book provides a thorough treatment of all the fundamental topics such as sampling, frequency analysis, linear systems, and filters. Professionals gain a clear understanding of the real-world effects of computer simulation and learn how to perform efficient calculations and system simulations. Moreover, this practical reference features detailed examples that help engineers and students master the material, and includes an appendix of simulation algorithms that helps save time on the job.