VARIABLE CUTOFF FREQUENCY NONLINEAR DIGITAL FILTERS: I-ONE-DIMENSION

ＶＡＲＩＡＢＬＥＣＵＴＯＦＦＦＲＥＱＵＥＮＣＹＮＯＮＬＩＮＥＡＲＤＩＧＩＴＡＬＦＩＬＴＥＲＳ：Ｉ－ＯＮＥ┐ＤＩＭＥＮＳＩＯＮ＊ＧｕＨｏｎｇ（古红）ＺｈｕＹｉｓｈｅｎｇ（朱贻盛）（ＩｎｓｔｉｔｕｔｅｏｆＢｉｏｍｅｄｉｃａｌＥｎｇｉｎｅｅｒｉｎｇ，Ｓｈａ...     

LEISHMANIA PROMASTIGOTES EVADE INTERLEUKIN 12 INDUCTION BY MACROPHAGES AND STIMULATE A BROAD RANGE OF CYTOKINES FROM CD_（4）~（＋

ＬＥＩＳＨＭＡＮＩＡＰＲＯＭＡＳＴＩＧＯＴＥＳＥＶＡＤＥＩＮＴＥＲＬＥＵＫＩＮ１２ＩＮＤＵＣＴＩＯＮＢＹＭＡＣＲＯＰＨＡＧＥＳＡＮＤＳＴＩＭＵＬＡＴＥＡＢＲＯＡＤ　ＲＡＮＧＥＯＦＣＹＴＯＫＩＮＥＳＦＲＯＭ　ＣＤ_（４）~（＋）ＴＣＥＬＬＳＤＵＲＩＮＧＩ...     

SUBCOOLED BOILING REGIME RECOGNITION BASED ON FRACTAL CHARACTERISTIC QUANTITIES OF SOUND PRES-SURE

ＳＵＢＣＯＯＬＥＤＢＯＩＬＩＮＧＲＥＧＩＭＥＲＥＣＯＧＮＩＴＩＯＮＢＡＳＥＤＯＮＦＲＡＣＴＡＬＣＨＡＲＡＣＴＥＲＩＳＴＩＣＱＵＡＮＴＩＴＩＥＳＯＦＳＯＵＮＤＰＲＥＳ－ＳＵＲＥＫｕａｎｇＢｏ（匡波）ＸｉａｎｇＹｕ＊（向宇）ＧｕｏＦａｎｇｚｈｏｎｇ＊＊（...     

EXISTENCEOFRESOLVABLEGROUPDIVISIBLEDESIGNSWITHBLOCKSIZEFOURANDGROUPSIZETWOORTHREE

ＥＸＩＳＴＥＮＣＥＯＦＲＥＳＯＬＶＡＢＬＥＧＲＯＵＰＤＩＶＩＳＩＢＬＥＤＥＳＩＧＮＳＷＩＴＨＢＬＯＣＫＳＩＺＥＦＯＵＲＡＮＤＧＲＯＵＰＳＩＺＥＴＷＯＯＲＴＨＲＥＥ＊ＳｈｅｎＨａｏ（ＤｅｐａｒｔｍｅｎｔｏｆＡｐｐｌｉｅｄＭａｔｈｅｍａｔｉｃｓ）Ａｂｓｔ...     

DESIGN OF VARIABLE-COEFFICIENT-DIFFERENCE-EQUA-TION FILTERS AND THEIR APPLICATION

ＤＥＳＩＧＮＯＦＶＡＲＩＡＢＬＥ┐ＣＯＥＦＦＩＣＩＥＮＴ┐ＤＩＦＦＥＲＥＮＣＥ┐ＥＱＵＡ┐ＴＩＯＮＦＩＬＴＥＲＳＡＮＤＴＨＥＩＲＡＰＰＬＩＣＡＴＩＯＮ＊ＺｈｕＹｉｓｈｅｎｇ（朱贻盛）ＺｅｎｇＢｏｍｉｎｇ＊＊（曾博名）ＬｉＸｉａｏｈｕｉ＊＊（李晓辉）Ｇ...     

EXPRESSION OF PCNA，P53，KI－67，EGFR AND ONCOGEN CerbB－2 IN HUMAN SUPERFICIAL SQUAMOUS CELL CARCINOMA OF ESOPHAGUS

ＥＸＰＲＥＳＳＩＯＮＯＦＰＣＮＡ，Ｐ５３，ＫＩ－６７，ＥＧＦＲＡＮＤＯＮＣＯＧＥＮＣｅｒｂＢ－２ＩＮＨＵＭＡＮＳＵＰＥＲＦＩＣＩＡＬＳＱＵＡＭＯＵＳＣＥＬＬＣＡＲＣＩＮＯＭＡＯＦＥＳＯＰＨＡＧＵＳＺｈａｎｇＪｕｎ（张军）ＨｉｒｏｙａｓｕＭａｋｕｕｃｈ...     

EFFECT OF GRINDING TISSUE ON ISOLATE RECOVERY FROM RABBIT CORNEAS WITH FUNGAL KERATITIS

ＥＦＦＥＣＴＯＦＧＲＩＮＤＩＮＧＴＩＳＳＵＥＯＮＩＳＯＬＡＴＥＲＥＣＯＶＥＲＹＦＲＯＭＲＡＢＢＩＴＣＯＲＮＥＡＳＷＩＴＨＦＵＮＧＡＬＫＥＲＡＴＩＴＩＳＲｉｃｈａｒｄＲｏｂｉｎｓｏｎ，ＹａｎｇＲｏｎｇ；Ｗ．ＳｔｅｖｅｎＨｅａｄ，ＤｅｎｔｓＯ＇Ｄａｙ（Ｄ...     

THE CHANGE AND SIGNIFICANCE OF ENDOTHELIN IN SERUM OF VERTEBRAL ARTERIAL INSUFFICIENCY TYPE ERVICAL SPONDYLOSIS

ＴＨＥＣＨＡＮＧＥＡＮＤＳＩＧＮＩＦＩＣＡＮＣＥＯＦＥＮＤＯＴＨＥＬＩＮＩＮＳＥＲＵＭＯＦＶＥＲＴＥＢＲＡＬＡＲＴＥＲＩＡＬＩＮＳＵＦＦＩＣＩＥＮＣＹＴＹＰＥＥＲＶＩＣＡＬＳＰＯＮＤＹＬＯＳＩＳ（冯世庆）（杨敏杰）（赵俊杰）（张涛）（马巍）（刘淼）（...     

MULTIPLE TRANS-ACTING FACTORS MEDIATE THE INDUCTION OF C-FOS IN VASCULAR SMO

ＭＵＬＴＩＰＬＥＴＲＡＮＳ－ＡＣＴＩＮＧＦＡＣＴＯＲＳＭＥＤＩＡＴＥＴＨＥＩＮＤＵＣＴＩＯＮＯＦＣ－ＦＯＳＩＮＶＡＳＣＵＬＡＲＳＭＯＯＴＨＭＵＳＣＬＥＣＥＬＬＳＣｈｅｎＹａｎｑｕｎ；ＢａｒｔｅｋＲｙｄｚｅｗｓｋｉ，ＡｌｌｅｎＪ．Ｎａｆｔｉｌａｎ（Ｄｅ...     

MULTIPLE ENHANCER ELEMENTS MEDIATE THE INDUCTION OF C-FOS BY ANGIOTENSIN Ⅱ

ＭＵＬＴＩＰＬＥＥＮＨＡＮＣＥＲＥＬＥＭＥＮＴＳＭＥＤＩＡＴＥＴＨＥＩＮＤＵＣＴＩＯＮＯＦＣ－ＦＯＳＢＹＡＮＧＩＯＴＥＮＳＩＮⅡＩＮＶＡＳＣＵＬＡＲＳＭＯＯＴＨＭＵＳＣＬＥＣＥＬＬＳＣｈｅｎＹａｎｑｕｎ；ＢａｒｔｅｋＲｙｄｚｅｗｓｋｉ，ＡｌｌｅｎＪ．...     

用于轨检信号提取的线性相位IIR移变滤波器

提出一种基于谱变换的IIR移变滤波器的设计方法，并利用分块翻转技术实现滤波器的线性相位特性.在满足提取100M范围内的长波不平顺成分的设计参数条件下，仿真计算IIR滤波器的频响误差．仿真结果利明：当翻转块长度为1600时，IIR线性相位滤波器能满足线性相位特性和幅频特性要求，比传统轨检FIR滤涸器节省了95．5％的乘法运算和98．0％的加法运算，前者与后者所需的缓存量之比为9614／2135．利用实测信蚓计算验证了线性相位IIR移变滤波的正确性和有效性．     

MATLAB在数字信号处理中的应用

根据FIR数字滤波器设计的基本原理,利用MATLAB实现数学逼近理论,采用窗函数设计FIR数字滤波器的设计方法进行模拟仿真。分析结果发现,在同样阶数下,优化设计可以获得最佳的频率特性和衰耗特性,具有通带和阻带平坦、过渡带窄等优点。双线性变换法设计IIR滤波器可应用于图像处理等方面。     

电力系统故障信号的短时傅里叶分析及其应用

根据短时傅里叶变换的滤波器组实现原理,研究了不同窗函数实现的５０Ｈｚ带通滤波器,分析比较了它们用于提取电力系统高压输电线路故障信号基频分量的能力。提出了一种具有实用价值的由一周波三角窗调制实现的５０Ｈｚ带通滤波器。     

摆式列车倾摆控制系统的信号处理

对摆式列车倾摆控制系统的实际线路采集信号进行分析,采用切贝雪夫逼近设计有限冲激（ＦＩＲ）低通数字滤波器,分析了信号经过滤波后产生滞后的原因,提出了滞后的补偿办法。给出了超高阈值的选取,介绍了ＤＳＰ技术,采用ＴＭＳ３２０Ｃ４０实现数字滤波器,得到可以实际应用的数字滤波器。     

基于小波变换的频谱检测算法分析

文章分析了认知无线电频谱检测中匹配滤波检测、能量检测、周期平稳过程特征检测的性能,指出了噪声对各自检测性能的影响,给出了一种基于小波变换的信号频谱检测算法,着重对含噪2FSK、2PSK信号进行分离仿真。仿真结果表明,该算法可以有效地进行信号的成分分离,降低了噪声的频谱检测的影响。     

IIR数字滤波器设计的搜寻者优化算法

为进一步提高无限冲击响应(IIR)数字滤波器的性能,提出了一种基于搜寻者优化算法(SOA)的IIR数字滤波器设计方法.SOA基于模拟人的随机搜索行为,由利用位置变化评价得到的经验梯度确定搜索方向,由采用简单模糊规则的不确定性推理确定搜索步长,通过搜寻者在搜索空间的位置更新,实现对优化问题的求解.2个典型设计实例的仿真结果表明,与差分进化算法(DE)和3种改进的粒子群算法(PSO)相比,SOA具有较好的全局寻优能力和较快的收敛速度,能有效地应用于IIR数字滤波器的没计.     

非理想电压下有源电力滤波器的电流检测

分析了有源电力滤波器（APF）电流（ip-iq）检测法中影响检测精度的因素，包括低通滤波器和锁相环的频率及相位检测误差．为消除电流检测中非理想电压带来的锁相环检测误差，提出改进的电流（ip-iq）检测法．在该方法中，将APF直流侧电压的调整部分单独考虑，调整量加入到经过低通滤波器滤波并经反变换环节得到的基波电流信息中．这样，未经过反变换的直流侧电压调整值不受锁相环误差的影响．仿真验证了改进方案能有效降低非理想电压对电流检测精度的影响，提高APF性能．     

Optimal linear phase finite impulse response band pass filter design using craziness based particle swarm optimization algorithm

An efficient method is proposed for the design of finite impulse response (FIR) filter with arbitrary pass band edge, stop band edge frequencies and transition width. The proposed FIR band stop filter is designed using craziness based particle swarm optimization (CRPSO) approach. Given the filter specifications to be realized, the CRPSO algorithm generates a set of optimal filter coefficients and tries to meet the ideal frequency response characteristics. In this paper, for the given problem, the realizations of the optimal FIR band pass filters of different orders have been performed. The simulation results have been compared with those obtained by the well accepted evolutionary algorithms, such as Parks and McClellan algorithm (PMA), genetic algorithm (GA) and classical particle swarm optimization (PSO). Several numerical design examples justify that the proposed optimal filter design approach using CRPSO outperforms PMA and PSO, not only in the accuracy of the designed filter but also in the convergence speed and solution quality.     

Satisfactory Optimization Design of IIR Digital Filters

A new method called satisfactory optimization method is proposed to design IIR ( Infinite Impulse Response) digital filters, and the satisfactory optimization model is presented. The detailed algorithm of designing IIR digital filters using satisfactory optimization method is described. By using quantum genetic algorithm characterized by rapid convergence and good global search capability, the satisfying solutions are achieved in the experiment of designing lowpass and bandpass IIR digital filters. Experimental results show that the performances of IIR filters designed by the introduced method are better than those by traditional methods.