As a computer sciecne major doing research in wireless networking, I always find it necessary to gain some electrical engineering background. Here are some selected books that cover various subjects:
- Oppenheim, Alan V., Ronald W. Schafer, and John R. Buck. Discrete-time signal processing.
- Lee, Edward A. Structure and Interpretation of Signals and Systems. Lee & Seshia, 2011.
- Sergio Franco, Design with Operational Amplifiers and Analog Integrated Circuits, Third Edition, McGraw-Hill Education, 2001
- Tse, David, and Pramod Viswanath. Fundamentals of Wireless Communication. Cambridge University press, 2005.