Communications Receivers. Principles and Design by Ulrich L. Rohde, Jerry C. Whitaker, Hans Zahnd

By Ulrich L. Rohde, Jerry C. Whitaker, Hans Zahnd

This completely up to date consultant deals finished reasons of the technological know-how in the back of today’s radio receivers besides functional tips on designing, developing, and preserving real-world communications structures. you are going to discover procedure making plans, antennas and antenna coupling, amplifiers and achieve keep an eye on, filters, mixers, demodulation, electronic conversation, and the newest software program outlined radio (SDR) expertise.

Written by way of a workforce of telecommunication specialists, Communications Receivers: rules and layout, Fourth variation, positive aspects technical illustrations, schematic diagrams, and targeted examples.

Coverage includes:

• uncomplicated radio considerations
• Radio receiver characteristics
• Receiver procedure planning
• Receiver implementation considerations
• RF and baseband recommendations for Software-Defined Radios
• Transceiver SDR considerations
• Antennas and antenna coupling
• Mixers
• Frequency assets and control
• Ancillary receiver circuits
• functionality size

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Extra resources for Communications Receivers. Principles and Design

Sample text

To help in this, a small residual carrier can be sent, although this is not necessary. 13 DSB-SC modulation: (a) waveform, (b) spectrum. 14 SSB modulation: (a) waveform, (b) spectrum. The upper sideband (USB) and lower sideband (LSB) of the AM or DSB signal are mirror images. SSB has found widespread use in voice multiplexing equipment for both radio and cable transmission. There are certain performance advantages to some of these techniques, and the multiplexing and demultiplexing equipment is much simpler than that required for frequency stacking of SSB channels.

If the input wave is integrated before being applied to the phase modulator, the resulting wave is the equivalent of FM by the original input wave. 13. These sudden discontinuities in amplitude and phase of the signal do not result in a spreading of the spectrum because they occur simultaneously so as to maintain the continuity of the wave and its slope for the overall signal. To help in this, a small residual carrier can be sent, although this is not necessary. 13 DSB-SC modulation: (a) waveform, (b) spectrum.

The Nyquist law for digital coding dictates that the sample rate must be at least twice the cutoff frequency of the signal of interest to avoid these effects. 34 Analog-to-digital converter block diagram.

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