real time operating systems can be found in

Ngày tải lên: 01/01/2014, 18:47

... sineTable[BUF_SIZE] {0x0000,0x000f,0x001e,0x002d,0x003a,0x0046,0x0050,0x0059, 0x005f,0x0062,0x0063,0x0062,0x005f,0x0059,0x0050,0x0046, 0x003a,0x002d,0x001e,0x000f,0x0000,0xfff1,0xffe2,0xffd3, 0xffc6,0xffba,0xffb0,0xffa7,0xffa1,0xff9e,0xff9d,0xff9e, 0xffa1,0xffa7,0xffb0,0xffba,0xffc6,0xffd3,0xffe2,0xfff1 }; int in_ buffer[BUF_SIZE]; int out_buffer[BUF_SIZE]; int Gain; void main() { int i,j; Gain  0x20; 22 INTRODUCTION TO REAL- TIME DIGITAL SIGNAL PROCESSING Table 1.3 Linker command ... are defined continuously in time, have an infinite range of amplitude values, and can be processed using electrical devices containing both active and passive circuit elements. Discrete -time signals ... data books, real- time debugging hardware, low-cost prototyping, etc. 16 INTRODUCTION TO REAL- TIME DIGITAL SIGNAL PROCESSING (a) (b) Figure 1.16 Connect probe point to a file: (a) set up probe point...

Ngày tải lên: 17/10/2013, 14:15

... addressing mode for this part of the experiment. The data- page pointer, XDP, needs to be set before we can start using the direct addressing mode. The Xi array can be initialized using the following ... structure rptb label_name-1 (more instructions . . . ) label_name executes a block of instructions between the rptb instruction and the end label label_name. The maximum number of instructions that can be ... is passed to the calling function by T0. 5. Write an assembly routine int exp2b_4(int *Ai, int *Xi) using the indirect addressing mode in conjunction with parallel instructions and repeat instructions to...

Ngày tải lên: 19/10/2013, 23:15

... CNumberString class block, as well as the InvalidNumberStringException member class, using the MustInherit keyword, as shown in Listing 9.47. The MustInherit keyword means that the CNumberString ... CPhoneNo Inherits CNumberString Public Class InvalidPhoneNumberException Inherits CNumberString.InvalidNumberStringException Public Sub New(ByVal pstrPhoneNumber As String) MyBase.New("The ... Number Extensions Derived from the CNumberString Class Public Class CExtension Inherits CNumberString Public Class InvalidPhoneExtensionException Inherits CNumberString.InvalidNumberStringException...

Ngày tải lên: 24/12/2013, 06:17

... `Time- domain signal x(n)', xlabel labels the x-axis with `Time index' and ylabel labels the y-axis with `Amplitude'. Note that these commands can be written in the same line. By ... trivial integer index n is used for the x-axis instead of an actual time index in seconds. To better represent the time- domain signal, we can use the colon operator to generate values between ... generated sinewave, we can use plot(n,xn); title(`Sinewave'); xlabel( `Time index'); ylabel(`Amplitude'); The waveform of the generated sinewave is shown in Figure B.1. In Figure...

Ngày tải lên: 25/01/2014, 19:20

... the name given in the declaration statement. In fact, the name given is just a fixed pointer to the beginning of the array. In C, the array name can be used as a pointer or it can be used to reference ... development can be done in parallel for large projects. Several engineers can work on the same project if it is separated into modules because the individual modules can be developed and tested independently ... manipulation can be performed using the variables. Memory locations must be defined before other statements use them. Initial values can also be specified at the same time when memory locations are defined....

Ngày tải lên: 25/01/2014, 19:20

... 2001. c  Springer-Verlag Berlin Heidelberg 2001 Adaptive Narrative 109 siderably in the “retelling,” without the need for reprogramming or re-scripting. While there remains much work to be done, ... functions and before any higher-numbered ones. Because of this rigid structure, Propp’s 102 J. Douglas and J. Gratch to maintain a separation between the time of events and the time the interactor learns ... as in ammatory by the agents controlling the crowd’s behavior. Sometime in t the crowd’s fury will boil over (as determined by the narrative agent), hopefully surprising and distressing the interactor. The...

Ngày tải lên: 16/03/2014, 17:20

... techniques can be highly unpredictable. If all critical time constraints cannot be verified a priori and the operating system does not include specific mechanisms for handling real- time tasks, ... processors, fixed execution times, and precedence constraints, then increasing the number of processors, reducing ex- ecution times, or weakening the precedence constraints can increase the schedule length. This ... made on the environment. In dynamic real- time systems (typically consisting of firm tasks), tasks can be created at runtime; hence the guarantee must be done online every time a new task is created. A...

Ngày tải lên: 01/04/2014, 17:20

... Philips, Real- time wavelet domain video denoising implemented in FPGA,” in Wavelet Applications in Industrial Processing II, vol. 5607 of Proceedings of SPIE, pp. 63–70, Philadelphia, Pa, USA, October ... September 2000. [19] K. Wiatr and P. Russek, “Embedded zero wavelet coefficient coding method for FPGA implementation of v ideo codec in real- time systems, ” in The International Conference on Infor- mation ... engineering, especially in the area of real- time systems, electronic computer- based systems, large-scale digital system design, computer systems design, communication networks, and systems programming. Wilfried...

Ngày tải lên: 22/06/2014, 22:20

... there is a linear relationship between the esti- mated execution time and the real execution time which inte- grate the routing time needed between two successive nodes. This is shown in Figure ... structure, by reconfiguring the FPGA array in hardware several times in a constrained time and with a defined partitioning and scheduling [1, 2]. Several architec- tures have been designed and have ... to minimise one or more of the following criteria: processing time, memory bandwidth, number of reconfigurations. In the second case, A Partitioning Methodology for Reconfigurable Embedded Systems...

Ngày tải lên: 23/06/2014, 01:20

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Ngày tải lên: 12/05/2013, 10:21

... cannot be identified prior to parsing, and so the timing of determining parsing results to update the belief state is unclear. On the other hand, responding to a user utterance in real time ... requires understanding it and updating the belief state in real time; thus, it is impossible to wait for subsequent inputs to determine boundaries. Abandoning full parsing and adopting keyword- ... robustness against speech recognition errors as in fragment- based understanding (Zechner and Waibel, 1998; Worm, 1998). The belief state can be computed at any point in time if a significant-utterance...

Ngày tải lên: 17/03/2014, 07:20

... resource-constrained stream mining systems, and decision-making in dynamic environments. In Section 3, we introduce the application of interest, which is optimizing distributed classifier chains, and ... the next time interval. From our experiments, the running time for determining the rule to reinforce during each iteration in SPERO was approximately 14.0 milliseconds, while the running time to determine ... Journal on Advances in Signal Processing 17 distributed stream mining systems, ” in Proceedings of the IEEE International Conference on Data Mining (ICDM ’07),pp. 1102–1107, December 2006. [12] F....

Ngày tải lên: 21/06/2014, 19:20

... hard real- time if a real- time application catches its deadline the 99.999% of the times. The indeterminism caused by the hardware cannot be re- duced by the software, thus no real- time operating ... events and operating system critical activities while guaranteeing strict deadlines is the main problem in real- time operating systems. Multipro- cessor systems make this problem even worse, because ... instead of the real- time process’ code. The operating system latency is the time elapsed between the instant in which an event is raised by some hardware de- vice and the instant in which a real- time...

Ngày tải lên: 22/06/2014, 19:20