Environmental Protection Throughout the world Teaching Objectives: This unit is intended to promote the students awareness of environmental protection. Afte learning it, SS should be able to have a general idea of the environmental conditions in the countries and regions discussed In the text have a basic knowledge of measures taken by the governments to protect the environment
5. Introduction (Chapter objectives) Amplitude modulation and single sideband Frequency and phase modulation Digitally modulated signals(OoK, BPSK, FSK, MSK MPSK, QAM, QPSK, a/4QPSK, and OFDM) Spread sprectrum and CDMa system