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This Book mainly concentrates on a direct sequence spread spectrum (DS/SS). A MATLAB - Simulink tool is used for designing DS/SS system to obtain system parameter and to test the influence of signals on the system. Two systems were designed, with data rate (100kb/s) and pseudo noise (PN) code with a code rate (4MHz),127 bits maximal linear code.Then, the performance evaluation was tested by simulating the design to get the received data which compared with transmitted data, and also to study the effect of additive white Gaussian noise (AWGN) and jamming to the DS/SS signal and calculate the...

Adaptive filters have become greatly popular in the area of digital signal processing, Especially its adaptive noise canceler (ANC) configuration which gets the most attention because of its use in portable devices like mobile phone. This book searches on how to build an adaptive noise canceler on FPGA. In this book, a comparison of some Variable Step Size LMS (VSSLMS) adaptive algorithms is carried out. Each component of the system design is built using VHLD language and then translates to the schematic library of Xilinx ISE 10.1i for using in complete system design, except the multiplier is...

Smart antennas have alternatively been labeled adaptive arrays or digital beamforming arrays. This new terminology reflects our penchant for "smart" technologies and more accurately identifies an adaptive array that is controlled by sophisticated signal processing. This book proposes six adaptive algorithms for smart antenna systems. The suggested algorithms fall into four approaches and offer a significantly improved solution to reduce interference levels and improve system capacity.