该方法充分考虑了非采样间隔信道的冲激响应能量泄漏问题。
The energy leakage of channel impulse response is enough calculated on non-sample spaced channel in this method.
同时，通过消除频域导频时域序列的自相关误差，能有效降低由DFT谱泄漏导致的信道估计误差。
At the same time, the channel estimation error, caused by the spectral leakage of DFT, can be reduced by canceling the auto-correlation error of the time-domain sequence of frequency-domain pilots.
基于对实际系统中信道冲激响应(CIR)泄漏问题的详细分析，提出了一种次优的时域信道估计算法。
Based on the detailed analysis of the channel impulse response (CIR) leakage in the practical OFDM systems, a sub-optimal time domain channel estimation algorithm is proposed.
使用多项式相消编码（PCC）训练符号进行信道估计，利用其频谱陡降的特点减少保护边带宽度，进而降低CIR泄漏。
To overcome the leakage of CIR, the frequency guard bands are reduced by using the polynomial cancellation coding(PCC) training symbols.
算法设计安全的生物密钥系统，由于泄漏，在侧信道攻击下任然是不安全的。
Even if the biometric cryptosystem is secure in algorithmic design, it may still be vulnerable to side-channel attack due to the physical leakage.
算法设计安全的生物密钥系统，由于泄漏，在侧信道攻击下任然是不安全的。
Even if the biometric cryptosystem is secure in algorithmic design, it may still be vulnerable to side-channel attack due to the physical leakage.
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