Tham khảo tài liệu 'wireless communications - chương 6', kỹ thuật - công nghệ, kĩ thuật viễn thông phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | Wireless Communications Principles and Practice 2/e . Rapppaport Chapter 6: Modulation Techniques for Mobile Radio * Analog and Digital Modulation, Line Coding, AM/FM/SSB * Digital Fundamentals: The Sampling Theorem, Nyquist Sampling * Key Digital Modulation Techniques: BPSK, OFDM, GMSK * Spread Spectrum: DS-SS, FH-SS, Coding Gain, Fading Margins * Amplitude Modulation * Double Sideband Spectrum * Fig. SSB Modulators * Tone-in Band SSB * Fig. Product Detection * VCO circuit * Wideband FM generation * Fig. Slope Detector for FM * Fig. Digital Demod for FM * Fig. PLL Demod for FM * Fig. Phase-shift quadrature FM demod * Fig. FM Demod circuit * Fig. Line Coding spectra * Fig. RZ and NRZ Line Codes * Fig. Nyquist Pulses for zero-ISI * Fig. Raised Cosine Spectrum * Fig. Spectrum of Raised Cosine pulse * Fig. Raised Cosine pulses * Fig. RF signal usig Raised Cosine * Fig. Gaussian pulse-shapes * Fig. BPSK constellation * Fig. Virtue of pulse shaping * Fig. BPSK Coherent demodulator * Fig. Differential PSK encoding * Fig. DPSK modulation * Fig. DPSK receiver * Fig. QPSK constellation diagrams * Fig. Virtues of Pulse Shaping * Fig. QPSK modulation * Fig. QPSK receiver * Fig. Offset QPSK waveforms * Fig. Pi/4 QPSK signaling * Fig. Pi/4 QPSK phase shifts * Fig. Pi/4 QPSK transmitter * Fig. Differential detection of pi/4 QPSK * Fig. IF Differential Detection * Fig. FM Discriminator detector * Fig. FSK Coherent Detection * Fig. Noncoherent FSK * Fig. Minimum Shift Keying spectra * MSK modulation * Fig. MSK reception * GMSK spectral shaping * Fig. GMSK spectra shaping * Fig. Simple GMSK generation * GMSK Demodulator * Digital GMSK demodulator * Fig. 8-PSK Signal Constellation * Fig. Bandwidth vs. Power Efficiency * Fig. Pulse Shaped M-PSK * Fig. 16-QAM Signal Constellation * . | Wireless Communications Principles and Practice 2/e . Rapppaport Chapter 6: Modulation Techniques for Mobile Radio * Analog and Digital Modulation, Line Coding, AM/FM/SSB * Digital Fundamentals: The Sampling Theorem, Nyquist Sampling * Key Digital Modulation Techniques: BPSK, OFDM, GMSK * Spread Spectrum: DS-SS, FH-SS, Coding Gain, Fading Margins * Amplitude Modulation * Double Sideband Spectrum * Fig. SSB Modulators * Tone-in Band SSB * Fig. Product Detection * VCO circuit * Wideband FM generation * Fig. Slope Detector for FM * Fig. Digital Demod for FM * Fig. PLL Demod for FM * Fig. Phase-shift quadrature FM demod * Fig. FM Demod circuit * Fig. Line Coding spectra * Fig. RZ and NRZ Line Codes * Fig. Nyquist Pulses for zero-ISI * Fig. Raised Cosine Spectrum * Fig. Spectrum of Raised Cosine pulse * Fig. Raised Cosine pulses * Fig. RF signal usig Raised Cosine * Fig. Gaussian pulse-shapes * Fig. BPSK .