This book presents an alternative and simplified approach for the robust adaptive detection and beamforming in wireless communications. The book adopts several systems models including DS/CDMA model with and without antenna array, OFDM/MIMO with antenna array model, and general antenna arrays model. The recently developed detection and beamforming algorithms are presented and analysed with emphasize on robustness. In addition, simplified and efficient robust adaptive detection and beamforming techniques are developed and compared with exiting techniques. Practical examples based on the above systems models are provided to exemplify the developed detectors and beamforming algorithms. Moreover, the developed techniques are implemented using MATLAB and the relevant MATLAB scripts will be provided to allow the readers to develop and analysis the presented algorithms. The complete simulation software for the above system models along with the detection and beamforming algorithms will be provided as a complete SW package along with the book. Moreover, some key detection/beamforming algorithms will be presented using MATLAB script in the relevant sections. Although the developed algorithms will be presented in the context of DS/CDMA, OFDM/MIMO, and antenna arrays but they can be easily extended to other domains and other applications.