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[GUI Developmo_vb

Description: 关于gis的二次开发,希望对初学者有用,我也是刚刚学这个的。-on the secondary development, useful for beginners, I was just in the school.
Platform: | Size: 329728 | Author: 刘颖 | Hits:

[Applicationsgisproject-MO+VB

Description: MO+VB的很多个简单示例,来自《GIS开发工程案例精选》,保质-MO VB many simple examples, from "GIS projects selected cases", durability!
Platform: | Size: 78848 | Author: | Hits:

[GIS programVB_MO_GIS

Description: Visual Basic + MapObject 开发的一段小程序,实现基本的图形显示、缩放、漫游,数据为Mexico城市、道路、河流、湖泊等数据,为初学MO二次开发的同学一定参考-Visual Basic+ MapObject developed a small program, the realization of basic graphic display, zooming, roaming, data for Mexico cities, roads, rivers, lakes and other data, the secondary development of MO for the beginner students must reference
Platform: | Size: 86016 | Author: shaoxiaodong | Hits:

[Communication-Mobilemat

Description: QASK mo QPSK modulation equation y=g(t)*cos(wc*t+2pi(m-1)/M) dulation equation y=am*g(t)*coswc Communication Systems Simulation with Wireless Applications, t
Platform: | Size: 2048 | Author: Daulappa | Hits:

[EditorPDFPasswordRemove

Description: 用于移除PODF密码的工具,很实用,希望大家支持-PDF Password Remover can be used to decrypt protected Adobe Acrobat PDF files, which have "owner" password set, preventing the file from editing (changing), printing, selecting text and graphics (and copying them into the Clipboard), or adding/changing annotations and form fields. Decryption is being done instantly. Decrypted file can be opened in any PDF viewer (e.g. Adobe Acrobat Reader) without any restrictions-- i.e. with edit/copy/print functions enabled. All versions of Adobe Acrobat (including 7.x, which features 128-bit encryption) are supported.
Platform: | Size: 570368 | Author: 黄楠 | Hits:

[Software EngineeringAPermanentmagnetsynchronousmotorvectorcontrolsyste

Description: : 讨论了一种采用 D S P芯片T MS 3 2 0 L F 2 4 0 7实现无传感器永磁同步电机转子磁场定向矢量控制的方案, 介 绍了永磁同步电机的数学模型和矢量控制的基本原理, 给出了在无位置传感器的情况下电机转子位置信号的确定 方法, 采用i , = 0的对凸极式转子磁路结构的无传感器永磁同步电动机的控制方法, 说明采用高速数字信号处理器 易于实现复杂的矢量控制算法, 可以有效地解决电机的强耦合特性.-: A s o l u t i o n t o c o n t r o l a p e r ma n e n t ma g n e t s y n c h r o n o u s m o t o r ( P MS M)o f s e n s o r l e s s u s i n g t h e TM$ 3 2 0LF 2 40 7 i S d i s c u s s e d. A br i e f i n t r o d u c t i o n o f t h e ma t h e ma t i c mo d e l a n d t he v e c t o r c o n t r o l o f PMS M i s p r e s e n t e d,a n d t h e me t h o d o f a s c e r t a i n i n g t h e r o t o r p o s i t i o n u nd e r t h e c i r c u ms t a n c e o f s p e e d s e n s o r l e s s i s a l s o me n t i o n e d.Th e c o n t r o l me t h o d o f i d 0 o n s a l i e n t p o l e PMSM wh i c h i s s e n s or l e s s i s p ut f o r wa r d,wh i c h s h o ws t h a t i f we us e t h e d i g i t a l s i g n a l p r o c e s s o r we c a n ma k e t h e c o mpl i c a t e d v e c t o r c o n— t r o l a r i t h me t i c c o me t r u e e a s i l y,a n
Platform: | Size: 171008 | Author: 张国辉 | Hits:

[Software EngineeringDesignofcontrollerofPMSMutilizingdspanditsrealizat

Description: :介绍了采用 T MS 3 2 0 L F 2 4 0 7 A芯片实现对永磁 同步 电机 ( P MS M)的设 计与控制 ,讨论 了空间矢量脉宽调制 ( S V P WM)控制方法 ,并给出了控制系统的硬件设计和 软件实现。试验结果表 明该系统具有较好的跟踪性能 ,稳态精 度较高 ;T MS 3 2 0 L F 2 4 0 7 A作为 D S P控制器 2 4 x系列 的新成员 ,是电机数字化控制的升级产品。-The d e s i g n a n d c on t r o l o f PMS M a t e r e a l i z e d u t i l i z i ng TMS 3 2 02 4 07A,a n d s pa c e v e c t o r p ul s e w d t h mo d u l a t on s d】 c u s s e d.Th e e x De r i me n t r e s uI t i n di c a t es t h a t t h e s y s t e m h a s be t t e r f ol l o wi n g p e r f o r ma n c e a n d h i g h e r s t e a d y p r e c i s o n, a s a n e wme Ⅱ l be o t t h e 24 x s e r i e s o f DSP c o n t r o l l e r s,TMS 3 2 02 4 07A i s a up g r a d e pr o d u c t i o n f o r mo t o r d i g i t a l c o nt r o l ·
Platform: | Size: 133120 | Author: 张国辉 | Hits:

[Software EngineeringPermanentmagnetsynchronousmotordirecttorquecontrol

Description: : 文章根据永磁同步电机的数学模型和直接转矩控制的基本原理, 设计了一种基于T MS 3 2 0 F 2 8 1 2的 全数字化直接转矩控制系统。首先利用MA T L A B软件对直接转矩控制系统进行建模和仿真, 得到电流、 转速、 转矩以及磁链的仿真波形, 然后对 系统进行实验研究。-t:Ac c o r d i ng t o t h e ma t h e ma t i c a l mo d e l o f Pe r ma ne n t M a g n e t S y nc h r o no u s M o t o r a n d pr i nc i pl e o f Di r e c t To r q ue Co n t r o l S y s t e m.a Di g i t a l DTC c o n t r o l s ys t e m b a s e d o n DS P TM s 3 2 0F 28 1 2 i s pr o po s e d i n t hi s pa pe r ,Fi rs t l y,t h e mod e l i ng a n d s i mu l a t i o n o f t h e c o n t r o l s ys t e m a r e i nt r o d u c e d b a se d o n M ATL AB/ S I M ULI NK.I t i s s h o we d t h a t t he s ys t e m Wa s de s i g n e d r i g h t l y.Th e n t h e c o n t r o l s ys t e m C a n b e e x pe r i me n t e d . Ke y wo r d s:d i re c t t o r q ue c o n t r o l ;pe r ma n e n t ma g n e t s yn c h ro n o u s mo t o r ; DS P
Platform: | Size: 189440 | Author: 张国辉 | Hits:

[Software Engineeringnoveldirecttorquecontrolofpmsmbasedonexpectedvolta

Description: : 为了解决永磁同步电机传统直接转矩控制中存在转矩和磁链脉动大的问题,设计 了基 于 空间电压矢量调制( S V M) 策略的直接转矩控制 , 通过 S V M 产生定子的预期 电压,并且采用 P I 控制 器代替传统直接转矩控制中的滞环比较器。同时在定子磁链观测中采用基于转子位置和定子电流 的定子磁链估计方法。实验结果表明, 与传统直接转矩控制项相比, 所提出的方法能够可靠而有效 地估计定子磁链, 改善 了电磁转矩和定子磁链的脉动, 同时减小了电流和转速波动,并具有很好的 动 态、 静 态性能 -t: To mi mmi z e t h e r i p p l e s o f t h e e l e c t r o ma g n e t i c t o r q u e a n d f lu x l i n ka g e p r o d u c e d i n t h e c 0 n v e n . t i o n a l d i r e c t t o I ’ q u e c o n t r o l( D T C)s y s t e m f o r p e r ma n e n t ma g n e t s y n c h r o n o u s mo t 0 r s( P MS M) , t h i s p a- p e r p r o p o s e s a s p a c e v e c t o r m o d u l a t i o n( S V M)s t r a t e g y o f D T C .T h e e x p e c t e d v o h a g e w a s p r o d u c e d b S VM.PI c o n t r o l l e r i n t hi s me t ho d wa s H s e d i n t h i s s t r a t e g y, i ns t e a d o f h y s t e r e s i s c o n t r o l l e r a n d s wi t c hi ng t a bl e i n c o n v e n t i o n a l di r e c t t o r qu e c o n t r o 1 . At t he s a t n e t i me, a n o v e l s t a t o r f l u x e s t i ma t o r wa s i n t r 0 . d u c e d.Th i s s c h e me e s t i ma t e d s t
Platform: | Size: 501760 | Author: 张国辉 | Hits:

[Algorithmwccc

Description: (1)已知甲数的35 是36,甲数是( )。已知乙数的47 是12,乙数是( )。   (2)40分钟是1小时的( ),1小时的35 是( )分钟。 (3)铅笔的单价是钢笔的920 ,把( )看作单位“1”。 二、根据算式补充条件   (1)停车场有24辆大汽车,( ),有多少辆小汽车?     24÷23   (2)停车场有24辆大汽车,( ),有多少辆小汽车?     24×23   (3)停车场有24辆小汽车,( ),有多少辆大汽车?     24×13 三、应用题   (1)一个长方体的宽是长的23 ,长是高的56 ,它的宽是10厘米,它的高是多少厘米?   (2)六年级(2)班学生人数是本年的学生人数的13 ,六年级学生人数是全校的16 ,如果六(2)班有学生48人,全校有学生多少人? 参考答案 一、 (1)60 ,21 (2)23 ,36 (3)钢笔的单价 二、 (1)正好是小汽车的23 -Th e i nf o r ma t i o n o f e n v i r on me n t c o n s t r a i n s a nd pa t h l e n g t h Wa s i n t e g r a t e d i n t he f it n e s s f un c t i o n whi c h Wa s c o mp ut e d by n e u r a l n e t wo r k,t h e pa t h no de s wa s v i e we d a s a p a r t i c l e,8 0 wi t h t h e qu a l i t y o f o p t i mi z a t i o n o f h y br id p a r t i c l e s wa r m a lg o . r i t h m,a b e s t p a t h W a s f o u n d .F i n a ll y b y c o mp u t e r s i mu l a t i o n,i t i s p r ov e d t h a t t h e a l g o r i t h m i s r a t i o n a l a n d c a n b e u s e d i n mo — bi l e r ob o t r e a l— t i me n a v i g a t i o n
Platform: | Size: 4096 | Author: wanchao | Hits:

[Mathimatics-Numerical algorithmsmodified-stfd_esprit

Description: 提 出了基于修正空间 时频分布( S TF D) 矩阵 的 ES P RI T算法 以实现 对宽 带线性调 频信号 的到达 角估计-Th e a l g or i t h m f o r di r e c t i o n- o f- a r r i va l o f t he wi d e ba n d c hi r p s i gna l s ba s e d 0 1 3 .ESPRI T u s i n g t he mo di f i e d s p a t i a l t i me- f r e q ue n c y ma t r i x i S pr e s e nt e d.The mod i f i e d STFD ma t r i x whi c h h as t he s i mi l ar ma t he ma t i c a l c on st r uc t i o n wi t h t he c o va r i a nc e ma t r i x c a n be ob t a i ne d wi t h t h e c r o s s W i gn e r- Vi l l e di s t r i but i o ns o f t he o ut pu t s of t he ar r a y.Unde r t he c o nd i t i on of un i f o r m l i n e a r r a y,t he mo di f i e d STFD ma t r i x c a n b e t r a n s f or me d i nt o t he ma t r i x wh i c h h a s t he pr op e r t y of r ot a t i on a l i nva r i a nc e . The n t he ESPRI T c a n be a p pl i e d t o D O A e s t i ma t i on
Platform: | Size: 145408 | Author: fjp119 | Hits:

[AI-NN-PRAdaptive-Embedding-Dimension

Description: 嵌入维数自适应最小二乘支持向量机 状态时间序列预测方法 Condition Time Series Prediction Using Least Squares Support Vector Machine with Adaptive Embedding Dimension 针对航空发动机状态时间序列预测中嵌入维数难于有效选取的问题, 提出一种基于嵌入维数自适应 最小二乘支持向量机( L SSVM ) 的预测方法。该方法将嵌入维数作为影响状态时间序列预测精度的重要参 数, 以交叉验证误差为评价准则, 利用粒子群优化( P SO ) 进化搜索LSSV M 预测模型的最优超参数与嵌入维 数, 同时通过矩阵变换原理提高交叉验证过程的计算效率, 并最终建立优化后的L SSVM 预测模型。航空发 动机排气温度( EGT ) 预测实例表明, 该方法可自适应选取适用于状态时间序列预测的最优嵌入维数且预测 精度高, 适用于航空发动机状态时间序列预测。- T o deal wit h the difficulty of selecting an appro pr iate embedding dimension for aeroeng ine co ndition time series predictio n, a metho d based o n least squar es suppo rt vecto r machine ( L SSVM ) with ada ptive em bedding dimension is pro po sed. I n the method, the embedding dimensio n is identified as a parameter that af fects the accuracy o f the aer oengine condition time series predictio n par ticle sw arm o ptimizat ion ( P SO) is ap plied to optimize the hyperpar ameter s and embedding dimension of the L SSV M pr edict ion model cro ssv alida tion is applied to evaluate the perfo rmance o f the L SSVM predictio n mo del and matr ix tr ansfo rm is applied to the L SSVM pr ediction model tr aining to accelerate the crossvalidation evaluation pro cess. Ex periments on an aeroengine ex haust g as t emperatur e ( EGT ) predictio n demonst rates that the metho d is hig hly effective in em bedding dimension selection. In compar ison w ith co nv
Platform: | Size: 342016 | Author: | Hits:

[OpenGL programAn-Adjustment-Method-of-Image-Barrel

Description: 一种新的三维映射几何建模方法, 即通过弧面映射变换, 先获取目标图与原图的像 素一一映射关系, 再采用四点线性插值方法, 实现了对原图像的桶形几何失真校正-This paper put s forward a kind of new 3-dimension mapping g eometr y mo deling metho d: first w e obtain the o ne by one mapping relat io ns between the o bject picture and its original one, and then use the 4-point linear interpolat ion method so that w e realize the barrel g eomet ry disto rt io n adjustment of the orig inal picture.
Platform: | Size: 344064 | Author: 刘浏 | Hits:

[Software EngineeringMeasure-for-Human

Description: 人体运动参数检测是生成人体运动计算机仿真演示和控制拟人机器人运动的主要手段。近年来针对这 种检测方法国内外研究人员展开了广泛的研究。本文介绍了基于模型的人体运动参数检测方法的研究现状, 为人 体仿生学和拟人机器人等领域的科学研究提供依据-Mea sur e for huma n mo tio n par ameter s is a main method to g ener ate computer simulatio n o f human mot ion and t o co nt ro l humano id r obot mot ion. Recently, ex tensive resear ches o n this sensing metho d have been carr ied o ut by abr oad and domestic r esear chers. This paper intro duces pr esent r esear ch status of human motion paramet ers in or der to pro vide refer ences fo r scientific resear ch fields of human bionics, humanoid r obot , etc.
Platform: | Size: 158720 | Author: cp | Hits:

[AI-NN-PRlunwen

Description: 新一代高性能无人机飞控系统的研究与设计 张小林 赵宇博 范力思-I n o r de r t o cau se t he U A V f lig ht co nt r o l sy st e m has t he f o r mida ble da t a- ha ndling ca pa cit y , t h e lo w po we r lo ss , t he st r o ng f le x ibilit y an d a hig he r int e g r at io n r a t e, pr o po sed o ne kind of t e chn ol og y ba sed on SO P C w hic h ca n so lv e t hes e p r ob lem s o n U A V f lig ht co n  t r o l sy st e m. T r a nsf e r s m any N io s so f t pr o c ess o r . A lt e r a br in gi ng t he I P co r e a s w el l as t he per ip her y ha r dw a r e cir c uit . on e kind o f h ig h per f o r man ce f lig ht co nt r o l sy st em h as be en de sig ned. Co mpa r e s w it h t he t r a diti on al U A V co nt r o l sy s te m, t his o ne hav e ve r y st r o ng dat a handl ing capa cit y , t h e sma ll v o lume a nd lo w po w e r lo s s. T he a ct ua l fl ig ht r esul t indic at e d : Ea ch m odu la r de sig n is r ea so nab le, t he o ve r al l sy st em mo v e ment is st a ble. T his sy st e m ca n b e ser ve d a s t he ne x t g ene r
Platform: | Size: 620544 | Author: 天下 | Hits:

[Consolesort

Description: 各种排序算法的代码,包括选择排序、冒泡排序、插入排序、快速排序、堆排序、希尔排序。-关闭翻译英语中文德语检测语言 中文(简体)英语日语 翻译文字或网页 各种排序算法的代码,包括选择排序、冒泡排序、插入排序、快速排序、堆排序、希尔排序。 请键入文字或网站地址,或者上传文档。 取消 Gè zhǒng páixù suànfǎ de dàimǎ, bāokuò xuǎnzé páixù, mào pào páixù, chārù páixù, kuàisù páixù, duī páixù, xī ěr páixù.Various sorting algorithm code, including the selection sort, bubble sort, insertion sort, quick sort, heap sort, Hill.
Platform: | Size: 1024 | Author: 应兆平 | Hits:

[matlabtsp_pso

Description: : 针对粒子群优化算法易陷入局部极值的缺点, 提 出一种改进粒子群算法, 该算法借鉴贪婪算法的思想初始化种群, 利用两 个种群同时寻优, 并将遗传算法中交叉和变异操作引入其 中, 实现种群间的信息共享。-I n a l l u s i o n t o p a r t i c l e s wa r m o p t i mi z a t i o n b ei n g pr on e t o g e t i n t o l oc a l mi n i mu m, a n i mpr o v e d p a r t i c l e s wa r m o pt i mi z a t i o n a l g o r it h m i s p r o po s e d. Th e a l g o r it hm dr a ws o n t h e t hi n ki ng o f t he g r e e d y a l g o r it hm t o i n i t i a l i z e t he pa r t i c l e s wa l- n 1 . Two s wa r ms a r e u s e d t o o pt i mi z e s y nc h r o no u s l y, a nd c r o s s o v e r a n d mu t a t i o n o p er a t o r s i n g e n e t i c a lg o r i t h m a r e i n t r o d uc e d i n t o t h e ne w a l g o r it h m t o r e a l i z e t h e s ha r i ng o f i n f o r m a t i o n a mo ng s wa r l T i S .
Platform: | Size: 570368 | Author: xiaowei | Hits:

[matlabaumerical-integ-ration

Description: : 针对实际振动位移难以获取的问题, 利用振动位移与加速度信号之间的关系, 先对采样后的加速度信 号采用时域数值积分,得到含有趋势项的速度信号及位移信号,再采用拟合多项式极值的方法, 消除积分过程 中产生的趋势项,从而得到更为精确的速度和位移信号. 算例表明, 利用拟合多项式极值消除趋势项的方法, 得到的位移时程曲线拟合精度高-: In pract ical engineering , the collection of displacement data is mo re dif ficult than that of the acceleratio n data in the time-domain .Displacement sig nals w as g ot f rom acceleration s ignals using aumerical integrat ion , wi th the t rend o f erro r. Poly nomial fit ting method o f ex t reme value to eliminate the trend of erro r w as proposed . More precise di splacement data can be acquired f rom thi s algo rithm. The example show s that thi s alg orithm can get hig h accuracy displacement data f rom the acceleration data mo re easi ly .
Platform: | Size: 137216 | Author: lantian | Hits:

[AI-NN-PRMOEA-NSGA-II

Description: NSGA (No n- Do mina te d So r ting in Ge ne tic Alg o r ithms [5 ]) is a p o pula r no n-do mina tio n ba s e d g e ne tic a lg o r ithm fo r multi- o b je c tive o ptimiz a tio n. I t is a ve r y e ff e c tive a lg o r ithm but ha s b e e n g e ne r a lly c r itic iz e d fo r its c o mputa tio na l c o m-ple x ity, la ck o f e litis m a nd fo r cho o s ing the o ptima l pa r a mete r va lue fo r s ha r ing pa r a me te r σsh ar e . A mo difi e d ve r s io n, NSGA- I I ( [3 ]) wa s de ve lo p e d, w hich ha s a b e tte r s o r ting a lg o r ithm , inc o r p o r a te s e litis m a nd no s ha r ing pa r a me te r ne e ds to b e cho s e n a priori. NSGA- I I is dis c us s e d in de ta il in this r e p o r t a nd two s a mple te s t func tio ns a r e o ptimiz e d us ing it.
Platform: | Size: 371712 | Author: wenxiaoyong | Hits:

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