Noncoherent receivers are attractive for pulsed UWB systems due to the implementation simplicity. To alleviate the noise effect in detecting UWB PPM signals, this letter proposes a simple yet flexible weighted noncoherent receiver structure, which adopts a Square-law integrator multiplied with a window function.
標(biāo)簽： implementation Noncoherent attractive simplicity
上傳時間： 2013-12-01
上傳用戶：wys0120
Its functions are: n order within (excluding n) At the same time, 3 and 7 can be integral to all natural and a few of the Square root of s, and function as a value to return, the final result s output to file out.dat China.
標(biāo)簽： functions excluding integral within
上傳時間： 2016-11-12
上傳用戶：王者A
針對靜止圖像經(jīng)整數(shù)小波變換(integer wavelet transform)后,各子帶系數(shù)的幅值動態(tài)變化范圍小,不利 于零樹編碼(embedded zerotree wavelet coding)的缺點(diǎn),采用“從 1 開始的整數(shù)平方”代替“2 的整數(shù)次冪”作為零樹 編碼的量化閾值,縮短了量化閾值間隔.通過減少重要系數(shù)在較低量化閾值中出現(xiàn)的機(jī)會,增加了編碼過程中的 零樹數(shù)量 同時通過減少參與編碼的字符數(shù)及對最高頻帶零樹不編碼,簡化了編碼過程.實(shí)驗結(jié)果表明,整數(shù)平方 量化閾值下的零樹編碼(integer Square zerotree wavelet coding)解決了整數(shù)小波變換中零樹編碼的低效問題,提 高了靜止圖像的編碼效率.
標(biāo)簽： wavelet transform embedded zerotree
上傳時間： 2017-01-29
上傳用戶：as275944189
SuperLU is a general purpose library for the direct solution of large, sparse, nonsymmetric systems of linear equations on high performance machines. The library is written in C and is callable from either C or Fortran. The library routines will perform an LU decomposition with partial pivoting and triangular system solves through forward and back substitution. The LU factorization routines can handle non-Square matrices but the triangular solves are performed only for Square matrices. The matrix columns may be preordered (before factorization) either through library or user supplied routines. This preordering for sparsity is completely separate from the factorization. Working precision iterative refinement subroutines are provided for improved backward stability. Routines are also provided to equilibrate the system, estimate the condition number, calculate the relative backward error, and estimate error bounds for the refined solutions.
標(biāo)簽： nonsymmetric solution SuperLU general
上傳時間： 2017-02-20
上傳用戶：lepoke
cordic methods describe essentially the same algorithm that with suitably chosen inputs can be used to calculate a whole range of scientific functions including sin, cos, tan, arctan, arcsin, arccos, sinh, cosh, tanh, arctanh, log, exp, Square root and even multiply and divide. the method dates back to volder [1959], and due to its versatility and compactness, it made possible the microcoding of the hp35 pocket scientific calculator in 1972. here is some code to illustrate the techniques. ive split the methods into three parts linear, circular and hyperbolic. in the hp35 microcode these would be unified into one function (for space reasons). because the linear mode can perform multiply and divide, you only need add/subtract and shift to complete the implementation. you can select in the code whether to do the multiples and divides also by cordic means. other multiplies and divides are all powers of 2 (these dont count). to eliminate these too, would involve ieee hackery.
標(biāo)簽： essentially algorithm describe suitably
上傳時間： 2017-03-02
上傳用戶：litianchu
/*請分別定義圖形類Shape（抽象基類），繼承類矩形類Rectangle、正方形類Square、 圓形類Circle；它們具有的方法是計算周長和面積。在另一個類的main函數(shù)中分別創(chuàng)建矩形、 正方形和圓形對象，設(shè)置所需的屬性值，打印其周長和面積。*/
上傳時間： 2014-01-16
上傳用戶：lili123
分別定義圖形類Shape（抽象基類），繼承類矩形類Rectangle、正方形類Square、 圓形類Circle；并且計算周長和面積。在另一個main函數(shù)中分別創(chuàng)建矩形、 正方形和圓形對象，設(shè)置所需的屬性值，打印其周長和面積。（備注：只要把該文件解壓，把里面的東東COPY去即可使用）
上傳時間： 2017-07-25
上傳用戶：wuyuying
The radially averaged power spectrum (RAPS) is the direction-independent mean spectrum, i.e. the average of all possible directional power spectra. This function computes and plots the RAPS of an input image. The function was written to produce the RAPS for Square weather radar reflectivity images so you will have to relabel the plot axes and title to suit your needs. The radially averaged power spectrum provides a convenient means to view and compare information contained in 2D spectra in 1D
標(biāo)簽： spectrum direction-independent i.e. the
上傳時間： 2013-12-17
上傳用戶：watch100
Main program running when workpiece is ready on deferent belt(deferent_ready=ture). * Call Square_Wave subroutine to generate 0.5ms Square wave on P1.2 to drive * electromotor,then drive deferent belt step forward. When it steps to the measure * zone, it stops to be measured. Then call A_D subroutine to transform analog * signals to digital signals , after then call serial subroutine to transfer * digital signals to PC. Call Square wave subroutine to drive deferent belt step to * original position waitting for defere ready flag to run the next circle.
標(biāo)簽： deferent_ready workpiece deferent program
上傳時間： 2017-08-31
上傳用戶：baiom
I can remember buying my first electronic calculator. I was teaching a graduate level statistics course and I had to have a calculator with a Square root function. Back in the late 1960s, that was a pretty high-end requirement for a calculator. I managed to purchase one at the “educational discount price” of $149.95! Now, I look down at my desk at an ATmega2560 that is half the size for less than a quarter of the cost and think of all the possibilities built into that piece of hardware. I am amazed by what has happened to everything from toasters to car engines. Who-da-thunk-it 40 years ago?
標(biāo)簽： Beginning Arduino for
上傳時間： 2020-06-09
上傳用戶：shancjb
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