取样物理量为无功功率，具有谐波测量及保护功能。
Sampling physical parameter is inactive power which has functions of harmonic measurement and protection.
光纤取样可以降低高功率激光脉冲时间波形测量成本，并提高测量系统抗干扰能力。
By using the method of fiber sampling, the cost of measuring high power lasers pulse wave can be cut down, and the anti-jamming ability of the measuring system can be improved.
结果表明，在FFH- OCDMA系统中，光纤色散导致解码自相关光脉冲峰值功率和光脉冲取样能量的降低，进而导致系统误码率（BER ）的增加。
The results of simulation show that dispersion seriously reduces the peak power and sample energy on the FFH OCDMA system. Hence, bit error rate(BER) of system is increased by dispersion.
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