Communications Blockset

Nonrandom Signals

Blocks in the Comm Sources library can create nonrandom signals by reading from a file or by simulating a voltage-controlled oscillator (VCO):

• The Triggered Read from File block reads a record from a file whenever an input trigger signal has a rising edge. You can set up the block to read at every rising edge of the trigger, or every kth rising edge of the trigger for a positive number k.
• A voltage-controlled oscillator is one part of a phase-locked loop. The Voltage-Controlled Oscillator and Discrete-Time VCO blocks implement voltage-controlled oscillators. These blocks produce continuous-time and discrete-time output signals, respectively. Each block's output signal is sinusoidal, and changes its frequency in response to the amplitude variations of the input signal.

Random or Pseudorandom Signals

Communications Sinks