Real-Time Embedded Systems are becoming more user-friendly in day to day life and their usages are widely increasing in human life. Real-Time Embedded system works to ensure excellence in design, development and testing of Water Surface & Sub-surface Vehicles, Weapon Control Systems. And also used in Defense, Aerospace, Railways, Automotive, Medical, Transportation and Communication. The Research and Development in Defense and Aerospace Departments are in need of deterministic & flawless products. The Probability of failure in these products has been reduced extensively through Embedded Systems with their key features like Robustness, Real-Time, Reliability and much more. This book mainly emphasizes design and development of Test Panel of Underwater Communication Systems which is used in Under Water Vehicle. This vehicle processes all different types of data from Sub Systems (Sensors) around it. The reader would get an idea how to Simulate and Validate different types of data which is received by Sub Systems. Also reader can get idea about practical defense and other embedded related applications used in different platforms.