上班好远
FIR滤波器的设计在复杂凸优化架飞机2。弗拉维奥-布里亚托利Elekirotechnik,lnstiiul fiir Elektronik,涂柏林,D - 10587柏林。 German1,”Fakultiit我,Lehrstuhlfiir,涂Ingenieurmathematik恋情。 恋情。D - 101344、德国三、FIR滤波器的设计在复域进行切比雪夫近似在复杂问题持续复杂近似看作是一个凸半无限规划问题。这个方法允许滤波器设计(在)下有限多个附加凸约束系统功能的过滤器。为求解半无限规划问题提出了一种新的方法可以被解释为著名的进一步发展Kelley-Cheney-Goldstein切平面有限元凸二次规划方法。该方法简单、可靠的方法正如作者在[第三十条、第三十一条],唯一的方法也同样证明了到现在收敛性和能解决连续处理设计问题的约束。滤波器设计的方法进行了介绍,特别是1000系数。许多测试实例方法相比,在[第三十条、第三十一条]。4。在遥远的边界FIR-Filter komplexen Ebene帮助komplexer Tschebyscheff-Approximation entworfen麻省理工学院,这stetige wobei komplexe Approximationsproblem konvexes semi-infinites Optimierungsproblem als静脉相反的影响。 这张Vorgehensweise ermijglicht是的,滤波器(联合国)在自己zusPtzlichen vielen konvexen Restriktionen一个死System-Funktion entwerfen差不多。 Fiir死LGsung des semi-infiniten Optimierungsproblems安理会Methode vorgeschlagen neue地震,死亡Weiterentwicklung bekannten Kelley-Cheney-Goldstein-Schnittebenenverfahrens Fiir als药物洗脱支架endliche konvexe Optimierungsprobleme verstanden忍。 这是einfacher Methode zuverllssig您和同这展览公司在这个Autoren[第三十条、第三十一条],国际展览公司,现在这安德利果汁,fiir这ebenfalls Konvergenz bewiesen是和这stetige Entwurfsprobleme麻省理工学院Nebenbedingungen l&en能。 Beispiele fiir过滤器,死entworfen wurden麻省理工学院dem展览公司,angegeben边界,insbesondere eines麻省理工学院1000 Koeffizienten。 Fiir订Reihe·冯·Testbeispielen dem在麻省理工学院的影响这展览公司verglichen[第三十条、第三十一条]。5。蓝德filtres概念在domaine complexe最好少RIF effect&e吗? 我'aide·德·l·德·Chebycheff 'approximation complexe,德勒problkme l 'approximation外径,最好的considkre complexe继续Ctant联合国problkme德大展semi-infinie convexe。 这个approche autorise蓝德filtre联合国安理会nombre概念arbitraire德contraintes
changyin1116
How many sheets could a sheet slitter slit ifa sheet slitter could slit sheets?如果纸张切刀能够切割纸张的话,纸张切刀能切开多少张纸?
I How many sheets could a sheet slitter slit if asheet slitter could slit sheets?如果纸张切刀能够切割纸张的话,纸张切刀能切开多少张纸?由有智云提供数据服务2 Automatic slitter scorer is the key equipment ofcorrugated board production line自动分压机是瓦楞纸板生产线上的关键设备。3 The company has a patented belt slitter and is anauthorized seller of Permco Hydraulic Products公司拥有专利的切带机,同时还是泊姆克液压有限公4 The scrapped rubber and slitter edge will be soldto regenerative plant and will not be used on ourproducts any more报废的橡胶和橡胶废边处理给再生胶厂,不再使用到5 XHFY series slitter and creasing machine issuitable for slitting, edge cutting, creasing ofkinds of corrugated board本机型适用于纸箱生产厂各种规格的瓦楞纸板分纸、切边、压痕一次成型。
小崔崔shining
3 filter performance verificationUsing Altera's Cyclone series of EP1C6Q240C8 chip, designed a 32-order FIR filter system of variable parameters, compiled on-chip logic cells occupy 75% of occupied RAM 71%. Using the signal generator produces a variety of input signals, the computer according to the given filter indicators derive the first-order factor, and then FPGA configuration; FPGA and then filtered the data uploaded to the computer display.Specific experiments and analyzed as follows:(1) filter indicators: Window function for Kaiser window, β = 3.4, sampling frequency of 187.5kHz, cut-off frequency of 35kHz, filter amplitude-frequency characteristic and phase-frequency characteristic as shown in Figure 13; input signal is 1.5kHz, and 10kHz sine wave mixed-signal, oscilloscope signal in Figure 14 a) shows, the filtered signal in Figure 14 b) below. From Figure 14 b) can be seen, since the low-pass filter cutoff frequency of 35kHz, the input of the mixed-signal frequency are lower than 35kHz, so the filtered signal waveform has not changed.(2) filter indicators and (1) the same input signal is 1.5kHz and 50kHz sine wave mixed-signal, oscilloscope signal in Figure 15 a) shows, the filtered signal in Figure 15b) as shown. The results can be seen that the low-pass filter cutoff frequency of 50kHz would be greater than the sine wave signal filtered out, the basic retained 1.5kHz sine wave signal.(3) filter indicators: window function is Hamming window, the sampling frequency of 187.5kHz, cut-off frequency of 5kHz, filter characteristics as shown in Figure 16; input signal is 1kHz sine wave and white noise mixed-signal, oscilloscope signal shown in Figure 17 a) shows, the filtered signal in Figure 17 b) below. After the results can be seen from the filter, filter to filter out a lot of white noise, basically resumed 1kHz sine wave signal.(4) filter indicators: Window function for Kaiser window, β = 3.4, sampling frequency of 187.5kHz, pass-band frequency 10kHz ~ 15kHz, filter characteristics as shown in Figure 18; input signal is 27kHz, and 10kHz sine wave mixed-signal , oscilloscope signal in Figure 19 a) shows, the filtered data shown in Figure 19 b) below. Through the filtered image can be seen that the band-pass filter will be outside the pass-band frequency 27kHz sine wave signal filtered out, and basically restored 10kHz sine wave signal.(5) filter indicators: Filter indicator and (4) the same; input signal is 1kHz and 10kHz sine wave mixed-signal, oscilloscope signal in Figure 20 a) below. After filtering the data shown in Figure 20 b) below. Through Figure 20 b) can be seen that the band-pass filter will be lower than outside the pass-band frequency of 1kHz sine wave signal filtered out, and basically retained the 10kHz sine wave signal.The above filter performance testing experiments. Through experiments (1) and (2) to validate the performance of the filter low-pass filtering. Through experiments (3) to validate the filter to filter out white noise. Through experiments (4) and (5) to validate the performance of the filter band-pass filtering. As can be seen from several experiments: The filter is a good filtering effect.4 adjustable parameters of the practical application of filter systemThrough performance testing to verify the present design of the filtering performance of the filter. To verify the adjustable parameters FIR filter system in practical applications the effect of the adjustable parameters in this FIR filter applied to CCD defects inspection system to verify.翻译的好赛
