Radio Communications Concepts: AnalogWiley, 16 de jan. de 1990 - 470 páginas An introduction to radio communications applications of analog systems. This text/reference emphasizes those aspects of communication system design that allow technical specifications to be established for the radio circuitry, employing trigonometric methods from the outset. Introduces a system classification of fixed vs. time-varying, instantaneous vs. dynamic and linear vs. non-linear. General design of the analog receiving system is given priority. |
Conteúdo
Linear Mixing | 1 |
Nonlinear Mixing | 62 |
Problems | 113 |
Direitos autorais | |
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a₁ AGC voltage amplifier amplitude attenuation bandpass filter bandwidth becomes Bessel functions Calculate capacitance capacitor carrier frequency circuit coefficients components constant crystal oscillator decreases demodulator determined difference mixer diode envelope envelope detector equal equation Example f₁ f₂ felf)co frequency deviation frequency modulator G₁ H(jw H₁ harmonic numbers image response input signal integer intercept point L₁ linear lowpass filter LPRINT maximum modulation index multiplier negative noise figure noise power nonlinear obtained occur operating oscillator frequency output signal output voltage overall noise factor passband phase detector polynomials power gain produced R₁ R₂ radians radio receiver receiver is tuned represents resistance resistor shown in Fig side frequencies sideband sinusoidal slope spectral spurious responses stage static characteristic station sum mixer superhet temperature thermal noise third-order transfer function transmitter undesired V₁ V₂ values voltage w₁t w₂t waveform zero