cách sử dụng most và most of

... Cách sử dụng Hope và Wish. Hai động từ này tuy cùng nghĩa nhưng khác nhau về cách sử dụng và ngữ pháp. Hope dùng để diễn đạt một hành động...

Ngày tải lên: 25/06/2013, 01:27

Ngày tải lên: 27/08/2013, 12:10

... Le Thi Kim Oanh Lien Mac A Secondary School Cách sử dụng Do và Make Hai động từ “do” và “make” thường gây lung túng cho người học vì cả hai đều có thể dịch là ... các hoạt động tạo nên cái gì đó cụ thể mà bạn có thể chạm vào được. • make food • make a cup of tea / coffee • make a mess - Một số cách nói phổ biến dùng “make”: ... mother. She’s doing nothing at the moment. - Một số cách nói phổ biến dùng “do”: • do one’s best • do good • do harm • do a favour • do business 2. Cách dùng “make” - Dùng “make” diễn tả các hoạt...

Ngày tải lên: 15/09/2013, 01:10

Ngày tải lên: 15/09/2013, 22:10

... the product of choice for a number of consumer applica- tions, since they can be very cost-effective. DSP techniques have been very suc- cessful because of the development of low-cost software and ... Chapter 3). This bandwidth represents the cutoff frequency of an 16 Digital Signal Processing Development System ț Use of the TMS320C31 DSK ț Testing the software and hardware tools such as the debugger ț ... site contains the most recent version of the C31 DSK software tools. These tools include the as- sembler and debugger as well as several support and applications examples. The DSK software tools,...

Ngày tải lên: 21/01/2014, 17:20

... 16 bits of internal or on-chip memory (RAM), with a 200-ns instruction cycle time. Most of the instructions can be executed in one instruction cycle. Members of the first-generation of processors are ... with n a power of 2 .align K Align section program counter (SPC) on a boundary with K being a power of 2 .loop n Loop n times through a block of code .endloop End of loop .end End of program .if ... entire measure of performance, since one needs to consider as well the efficient use of memory and the type of suitable instructions. The TMS320C31 is a true 32-bit processor capable of performing...

Ngày tải lên: 26/01/2014, 14:20

... Code This example illustrates the capability of the DSK as a data acquisition tool us- ing some of the support files provided with the DSK tools. A total of 512 sam- ple points are acquired, stored ... and verify that it generates an output sinusoid with a fre- quency of f = 1 kHz, the ratio of the sampling rate and the number of points. An FM signal can be implemented based on the program SINE8I.ASM. ... 0x000003C1; /*set timer control register */ asm(“ LDI 00000062h,IOF”); /*set IOF low to reset AIC */ for (loop = 0; loop < 90; loop++); /*keep IOF low for a while */ PBASE[0x42] = 0x00000131; /*set...

Ngày tải lên: 26/01/2014, 14:20

... the order of the filter. The larger the value of Q, the higher the order of the FIR filter, and the better the approxi- mation in (4.32) of the desired transfer function. The truncation of the infinite series ... Bessel function of the first kind defined by I 0 (x) = 1 + + + = 1 + Α ϱ n=1 ΄΅ 2 (4.52) which converges rapidly. A trade-off between the size of the sidelobe and the width of the mainlobe can ... AR6 LDI *-FP(2),AR0 ;address of HN pointer->AR0 LDI *-FP(3),AR1 ;address of XN pointer->AR1 LDI *-FP(4),AR5 ;addr of IO_INPUT pointer->AR5 LDI *-FP(5),AR6 ;addr of IO_OUTPUT pointer->AR6 LDI...

Ngày tải lên: 26/01/2014, 14:20

... phase responses of a filter for a giv- en transfer function H(z) with a maximum order of 10. Compile (using Bor- land’s C++ compiler) and run this program. Enter the coefficients of the transfer function ... in one of the 40-bit wide extended precision registers, a premature truncation of the intermediate output becomes negligible. A pro- gramming example will illustrate the implementation of a sixth-order ... structure is represented in terms of two direct form II sections as shown in Figure 5.7. From Figure 5.7, the output y(n) can be ex- pressed in terms of the output of each section, or a 02 + a 12 z –1 +...

Ngày tải lên: 26/01/2014, 14:20

... devel- opment of the radix-4 FFT. The last or lowest decomposition of a radix-4 algo- rithm consists of four inputs and four outputs. The order or length of the FFT is 4 M , where M is the number of stages. ... computational requirements of the FFT. From the periodicity of W W k+N = W k (6.4) and, from the symmetry of W W k+N/2 = – W k (6.5) Figure 6.1 illustrates the properties of the twiddle constants ... */ int num_stages=0; /*number of FFT stages, or iterations */ int index, step; /*index and step between twiddle factor*/ i=1; /* log(base 2) of # of points = # of stages */ do { num_stages+=1; i=i*2; }...

Ngày tải lên: 26/01/2014, 14:20

... function with a frequency of 312 Hz specified by REFNOISE. The adaptation step or rate of convergence is set to 1.5 × 10 –8 , the number of coefficients to 30, and the num- ber of output samples to ... ERR_FUNC ;address of error function ERR_FUNC .float 0 ;init error function to zero BETA .float 0.75E-7 ;rate of adaptation LENGTH .set 2 ;length of filter N = 2 NSAMPLE .set 128 ;number of output samples COEFF ... 205 FIGURE 7.8 Plot of overall output of adaptive filter structure converging to 1-kHz desired signal. FIGURE 7.9 Output frequency response of adaptive filter structure showing reduction of 312-Hz additive...

Ngày tải lên: 26/01/2014, 14:20

... ;address of 2nd set of HP coeff .word COEFF3 ;address of 3rd set of BP coeff .word COEFF4 ;address of 4th set of BS coeff .word COEFF5 ;address of 2-passbands coeff .word COEFF6 ;address of 3-passbands ... consists of 16 different sets of filters, each with two passbands that are used to increase or decrease the amplitude of a selected range of frequen- cies. Each band is controlled independently of ... with a center frequency of 1 kHz, which is one-quarter of the effective sampling rate of 4 kHz for band 6. The middle ᎏ 1 3 ᎏ -octave of band 5 has a center frequency of 512 Hz, which is one- quarter...

Ngày tải lên: 26/01/2014, 14:20

Ngày tải lên: 05/03/2014, 10:20

Ngày tải lên: 10/03/2014, 11:20

Ngày tải lên: 18/03/2014, 07:20

Ngày tải lên: 21/06/2014, 06:20

Ngày tải lên: 29/06/2014, 12:20

Ngày tải lên: 01/07/2014, 15:20

Ngày tải lên: 11/07/2014, 14:20

Ngày tải lên: 15/07/2014, 13:04