Recent content by Mr Jake

  1. M

    Capacitor/Inductor Imaginary Numbers

    because the components induce a 90 degree phase shift between the voltage and current signal, J simply represents a 90 degree phase shift. for example is a sin wave was aplpied to a capacitor then the voltage would be V=Va*Sin(a) whereas the current would follow I = Ia*Sin(a + 90). when...
  2. M

    Wiring Boolean Gates: Invert & AND Gates

    you can do it with a resistor and a transistor as follows . vcc . ----- . | . R . | . Vin-----T . | . ----- . gnd hope that's clear.
  3. M

    Convolution Sums: Understanding the Input & Output Signals

    generally you would need to know the impulse response of the filter, so if the impulse response is described as h(k) = x^2, then the impulse response would be h(k) = [0, 1, 4, 9, 16], now if you have a finite impulse response you would have a limited number of values for h(k). if all the...
  4. M

    Comparing Reverberation Chamber Standards: SAE J1113/27, GM 9120P, etc.

    Hi, does anyone know anything about reverberation chambers? specifically does anyone know about the industry standards, a camparason between SAE J1113/27 GM 9120P GM 3100GS GM 9114P or any other standards which allow for a 2 -> 3Ghz operation would be helpful, thanks
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