ID 原文 译文
23645 与单纯扩大望远镜口径相比，该方法为提高空间暗弱目标识别能力提供了具有更高性价比的有效途径。 Compared with simply expanding telescope diameter, this method provides a higher performance-price ratio way to improve the ability of space target detection.
23646 为了提高 MLC NAND Flash 的抗误码性能，该文提出一种基于优化缩短极化码的 MLC NAND Flash 差错控制方法。 In order to improve the BER performance of MLC NAND Flash, this paper presents a shortened polarization-based optimized codes for MLC NAND Flash.
23647 优化缩短极化码通过优化删减图样得到，首先通过比特翻转重排序的方式得到基本删减图样，进而选择具有更低信道容量的冻结比特组成优化删减图样，使得到的删减比特全为冻结比特，可以显著提高删减算法的纠错性能。 Optimized shortened codes are obtained by optimizing shortened pattern. Firstly, basic shortened pattern is obtained by bit reversal reordering, and then the freeze bits are selected with a lower channel capacity to constitute optimized shortened pattern, the resulting punctered bits are all frozen bits, this method can significantly improve the error correction performance.
23648 同时，根据 MLC 单元错误的不对称性，采用码率自适应的码字对 FLASH 中 MSB 和 LSB 进行不等错误保护。 Meanwhile, according to the error asymmetry of MLC unit, unequal error protection is used for the LSB and MSB.
23649 仿真结果表明：当误帧率为310−时，优化缩短极化码较相同码长的 LDPC 码和基本缩短极化码分别约有  3.72 ~5.89 dB 和 1.47~3.49 dB 增益； Simulation results show that the performance of the optimized shortened codes is better than LDPC and basic shortened polar code about 3.72~5.89 dB and 1.47~3.49 dB gain at the frame error rate of 3 10−;
23650 相比基于同一码率的优化缩短极化码方案，不等错误保护的差错控制方案获得约 0.25 dB 增益。 compared to the same rate based optimized shortened codes, the new ECC program obtains gain about 0.25 dB .
23651 针对大量出现的未知猝发类幅相调制信号，包括 PSK, APSK, QAM 等，该文提出一种通用的前向载波相位恢复方法。 For the emergence of massive burst amplitude and phase-modulated signals with uncertain modulation type including PSK, APSK, QAM and so on, a universal algorithm is proposed to accomplish the forward carrier phase recovery.
23652 该方法基于星座对称性，从星座点的相位信息出发，构造折叠相位(WP)统计量，实现了此类信号无区分调制类型，无需训练序列的载波相位盲估计。 Based on the symmetry of constellation, a statistic of wrapped phase is established from the phase information of the constellation points. As a result, the carrier phase blind estimation for unknown burst signals is accomplished regardless of the modulation type and training sequence.
23653 仿真表明，此方法相比现有算法，相同数据量，相同信噪比下优势明显，灵活性，鲁棒性均优于现有算法，适合非合作接收条件下猝发信号处理工程实践。 Simulations indicate that compared with the current algorithms, the proposed method has better anti-noise ability, flexibility, robustness, making it a good choice for engineering practice of burst signals under non-cooperative condition.
23654 纳米工艺下，老化效应与软差错共同引发的集成电路可靠性问题至关重要。 Under nano-scaled technology, the Integrated Circuit (IC) reliability issues caused by both aging mechanism and soft error become very critical.