... Le Thi Kim Oanh Lien Mac A Secondary School Cách sửdụng Do và MakeHai động từ “do” và “make” thường gây lung túng cho người học vì cả hai đều có thể dịch là ... dùng từ nào cho đúng. Dưới đây là một vài điểm cần lưu ý về hai động từ này giúp bạn đưa ra phương án lựa chọn phù hợp với từng trường hợp cụ thể. 1. Cáchdùng “do”- Dùng “do” cho các hoạt ... 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 business2. Cáchdùng “make”- Dùng “make” diễn tả các hoạt...
... accessed and run as an oscilloscope to verify thegenerated output sinusoid. The output of the DSK would then be connected tothe input of a sound card (such as Sound Blaster) plugged on a PC.Figure ... particular, to test the DSK.1.1 INTRODUCTIONDigital signal processors, such as the TMS320C31, are just like fast micro-processors with a specialized instruction set and architecture appropriate forsignal...
... Fourier transform(FFT) algorithm. A double minus (– –) would update the address to ARn-d. IfARn is at the top address of a circular buffer, it would specify or point to the ad-dress at the bottom ... instead ofdouble plus, would update or postdecrement ARn to ARn-d.c) *++ARn(d). The content in memory with an address preincremented(modified) to ARn+d. A double minus would predecrement the ... example. The out-put in R2, converted from floating-point to integer, would be sent to a DAC. Theblock of code within the loop would be continuous, since each time that theFILTER subroutine is...
... of the signal. Forexample, if we assume that the ear cannot detect frequencies above 20 kHz, we would sample a music signal at Fs> 40 kHz (typically at 44.1 kHz or 48 kHz) inorder to remove...
... function in (4.33), with positive powers of z, im-plies a noncausal or not realizable filter that would produce an output before aninput was applied. To remedy this situation, we introduce a delay...
... wish to resequence or scramble, to obtain x(0), x(4), x(2), x(6), x(1),x(5), x(3), x(7) as we would do in an FFT using the decimation-in-time (DIT)flow graph in figure 6.10.1. Set the index ... on a design tip in [14]. Other-wise, the circular buffer used with the bit-reversal procedure would need to bealigned within the main C program [15]. See also reference [16] for an updatedversion...
... program again. Amuch larger  value (by 1000) will not show the adaptation process. The output would immediately display the 1-kHz desired signal. It is more interesting totest this implementation ... input to an FIR lowpass filter program,produces a bandlimited random noise signal. This scheme would require twoDSK boards, one to provide the bandlimited random noise and the other to im-plement ... program flow. For faster execution, these routinescan be included where they are called. This would eliminate the CALL andRETS instructions.6. The LMS algorithm is implemented with equations...
... the lowest-octave filter would require 41× 29coefficients. With 10 filters ranging from 41 coefficients to 41 × 29coeffi-cients, the computational requirements would be considerable. To ... additional interrupts from occurring within a desired in-terval. Otherwise, several interrupts would occur. Switch bounce is accom-plished by turning off the external interrupt for a period ... Ns= 5,248; for band 10, Ns= 41. The total number of coefficientsfor the single-rate filter would then beNs= 20,992 + 10,496 + + 41 = 41,943The approximate number of multiplications (with...