
104 Chapter 3
Basic Digital Operation
Understanding Waveform Clipping
Figure 3-15 Multiple Channel Summing
The I and Q waveforms combine in the I/Q modulator to create an RF waveform. The
magnitude of the RF envelope is determined by the equation , where the squaring of I
and Q always results in a positive value. Notice how simultaneous positive and negative
peaks in the I and Q waveforms do not cancel each other, but combine to create an even
greater peak (refer to Figure 3-16 on page 105).
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