This movie shows the evolution of the cost surface for a system where the SNR decreases roughly logarithmically from 50 dB to 1 dB, and then back to 50 dB (e.g. 50, 30, ..., 1.5, 1, 1.5, ..., 30, 50). The system parameters are as follows:

• A 2-tap fractionally spaced equalizer is used.
• The channel impulse response is given by c=[0.2 0.5 1 -0.1]'
• The source is BPSK.
• The x-axis is the equalizer tap with index 0 and ranges from -4 to 4. Similarly, the y-axis is the equalizer tap with index 1 and ranges from -2 to 2.

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