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Electronics and Communication Control Systems Difficulty: Medium

Given the 'Energy Spectrum Density, S xx (f) of a sequence x(n) Gain cross over frequency is the frequency at which gain is When a load resistance RL is connected to a lossless transmission line of characteristic impedance 75 Ω. It results in a VSWR of 2. The load resistance is A signal m(t) with bandwidth 500 Hz is first multiplied by a signal g(t) where $$g\left( t \right) = \sum\limits_{k = - \infty }^\infty {{{\left( { - 1} \right)}^k}\delta \left( {t - 0.5 \times {{10}^{ - 4}}k} \right)} $$ The resulting signal is then passed through an ideal low pass filter with bandwidth 1 kHz. The output of the low pass filter would be DC tachogenerator can be used in