the algorithm design manual
The Algorithm Design Manual Next: Preface Up Main PageThe Algorithm Design ManualSteven docx
... The Algorithm Design Manual Algorithms Mon Jun 23:33:50 EDT 1997 file:///E|/BOOK/BOOK/BOOK.HTM (2 of 2) [19/1/2003 1:27:30] Preface Next: Acknowledgments Up: The Algorithm Design Manual ... http://www.cs.sunysb.edu/ algorith for details Next: Acknowledgments Up: The Algorithm Design Manual Previous: The Algorithm Design Manual Algorithms Mon Jun 23:33:50 EDT 1997 file:///E|/BOOK/BOOK/NODE1.HTM ... Previous: The Algorithm Design Manual Preface Most of the professional programmers that I've encountered are not well prepared to tackle algorithm design problems This is a pity, because the techniques...
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Tài liệu Applications of Robotics and Artificial Intelligence to Reduce Risk and Improve Effectiveness pdf
... corporation The Council has become the principal operating agency of both the National Academy of Sciences and the National Academy of Engineering in the conduct of their services to the government, the ... and the ability to perform new complex tasks Robots are typically programmed by either the lead-through or the teach-box method In the former the controller samples the location of each of the ... languages in the classical computer science sense, but they begin to bridge the gap In particular they not have the the capability to arithmetic on location in the workplace, and they not support...
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APPLICATIONS OF ROBOTICS AND ARTIFICIAL INTELLIGENCE TO REDUCE RICH AND IMPROVE EFFECTIVENESS doc
... corporation The Council has become the principal operating agency of both the National Academy of Sciences and the National Academy of Engineering in the conduct of their services to the government, the ... and the ability to perform new complex tasks Robots are typically programmed by either the lead-through or the teach-box method In the former the controller samples the location of each of the ... languages in the classical computer science sense, but they begin to bridge the gap In particular they not have the the capability to arithmetic on location in the workplace, and they not support...
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Theory and applications of ofdm and cdma wideband wireless communications phần 1 ppsx
... channels: one is the cosine and the other is the sine channel We shall see that the I-component modulated by the cosine is orthogonal to the Q-component modulated by the sine Thus, they behave like ... noise The usual mathematical model is the AWGN (Additive White Gaussian Noise) channel It is a very good model for the physical reality as long as the thermal noise at the receiver is the only ... and R(f ) denote their Fourier transforms Then, s, r = S, R holds This fact is called Plancherel theorem or Rayleigh theorem in the mathematical literature (Bracewell 2000) The above equality...
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Theory and applications of ofdm and cdma wideband wireless communications phần 2 ppt
... equivalently, the condition νmax TS must hold The frequency selectivity of the channel is determined by the different delay times of the signals They can be calculated as the ratio between the traveling ... factor) the projection of the difference between the receive vector y and the center ˆ point (x + x) between the two possible transmit vectors on the line between them The decision threshold is ... by ES = E |sk |2 The energy of the detector output of the noise is EN = E |nk |2 = N0 , so the signal-to-noise ratio, SNR, defined as the ratio between the signal energy and the relevant noise,...
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Theory and applications of ofdm and cdma wideband wireless communications phần 3 ppt
... 3.2) At the transmitter, the source data will first be encoded by the outer code The code words of this code will then serve as the input data for the inner code Between the two encoders, the order ... shows that the receiver must back rotate the receive signal r, and then estimate the transmit vector s in the familiar way as known for the AWGN channel, thereby taking into account the amplitude ... The MLSE receiver calculates the most probable transmit vector x from the receive vector y Because the input of the MLSE, that is, the components yi of the receive vector, are real numbers, the...
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Theory and applications of ofdm and cdma wideband wireless communications phần 4 ppt
... Calculate the metric increments µk for all the · 2m transitions between all the 2m states sk−1 and all the 2m states sk and add them to the to the 2m accumulated metric values k−1 corresponding to the ... state in addition to the accumulated metric and the pointer to the most likely preceding state Then the reliability of the bits of the ML path will be calculated First, they will all be initialized ... convolutional code, the exhaustive search for the MLSE can be avoided in the Viterbi algorithm by making use of the trellis structure For the MAP receiver, the exhaustive search can be avoided in the BCJR...
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Theory and applications of ofdm and cdma wideband wireless communications phần 5 ppsx
... Fourier synthesis will then be cyclically extended to twice the length of the other OFDM symbols Another smart method to find the time synchronization without any time stamp is based on the guard ... not exceed the length of the guard interval, the channel impulse response can be measured by cross correlating the received and the transmitted reference symbol In the DAB system, the first OFDM ... (see the following text) and it provides the phase references for the beginning of the differential demodulation We note that the channel estimate provided by the TFPR symbol is only needed for the...
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Theory and applications of ofdm and cdma wideband wireless communications phần 6 pot
... values for the information from the other bits (circles) A third curve shows the iterative decoding with ideal knowledge of the other bits (squares) The first curve is tightly bounded by the theoretical ... close to the optimum and becomes practically the same for higher SNR values For the LSB, the maxlog and TR curves are identical For the MSB, the TR metrics underestimates the reliability for the most ... decoding of the other bits The question arises if the ID curves for iteration with ideal knowledge of the other bits reflect a real situation where there can be bit errors that may influence further iteration...
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Theory and applications of ofdm and cdma wideband wireless communications phần 7 ppsx
... subchannels, with the audio frames At the beginning of one logical frame, the coding starts with the shift registers in the all-zero state At the end, the shift register will be forced back to the all-zero ... many mobile stations (MS) The transmission direction from the BS to the MS is called the downlink (DL) or forward link , the direction from the MS to the BS is called the uplink (UL) or reverse ... the BER condition has to be fulfilled in, for example, cp = 95% of the network area Since the BER depends on the Eb /N0 or the SNR, the network planner has to guarantee that the SNR is above the...
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Theory and applications of ofdm and cdma wideband wireless communications phần 8 pot
... the strongest and the other connection is indicated by the numbers in the diagram It should be noted that the received level is shown relative to the local mean level of the strongest BS If the ... the same, the soft handover gain is about dB for the UL and about 4–5 dB for the DL If the level difference is dB, the DL gain reduces to about 1.5 dB For the DL, it should be observed that the ... that the receiving MS needs some information on the allocated codes within the cell, which has to be signaled by the BS in DL direction Since the data rates of the connections and therefore the...
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Theory and applications of ofdm and cdma wideband wireless communications phần 9 pot
... includes the impulse response of the channel The RAKE receiver is the optimal receiver under the assumptions made at the beginning of the subsection Even for one user only, there is the approximation ... satellites, the position of the GPS receiver is obtained as the intersection of the spheres with the derived radii around the three satellites Since the time when the satellite transmits the signal ... 373 shift of any other sequence, the mobile can derive both the start of the frame within the cell and the PSC group the cell belongs to Hence, the MS has to correlate only to the eight primary...
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Theory and applications of ofdm and cdma wideband wireless communications phần 10 docx
... corresponding data symbols, the scrambling code group of the cell, the time offset, the slot number of the SCH and the slot number of the broadcast control channel carrying further system information ... this case, the BS commands the MS to switch to the new frequency in the new cell The BS may require some assistance in the form of measurement reports for the candidate cells To perform these measurements, ... broadcasted by the BS Furthermore, there is a one-to-one correspondence between the used channelization code and the cyclic shift of the training sequence For transmitting a random access message, the MS...
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Applications of Robotics and Artificial Intelligence Part 1 potx
... corporation The Council has become the principal operating agency of both the National Academy of Sciences and the National Academy of Engineering in the conduct of their services to the government, the ... and the ability to perform new complex tasks Robots are typically programmed by either the lead-through or the teach-box method In the former the controller samples the location of each of the ... D.C 1983 NOTICE: The project that is the subject of this report was approved by the Governing Board of the National Research Council, whose members are drawn from the councils of the National Academy...
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Applications of Robotics and Artificial Intelligence Part 4 ppt
... a tool If the person knows the tool's name then the name could be used; if not, it might be referred to as "the small red thing next to the toolchest." The decision may extend to other modes ... However, these systems have limitations: • • • They must be tailored to the data base and subject area They only accept queries about facts in the data base, not about the contents of the data ... researchers working in the problem area The table at the end of the chapter summarizes the findings Mechanical Design of the Manipulator and Actuation Mechanism The industrial robot is a single mechanical...
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Applications of Robotics and Artificial Intelligence Part 6 ppsx
... guiding the work of the committee; but beyond that, they are more broadly applicable to future decisions by the Army as well as by others The criteria for selecting applications reflect both the ... unfired cartridges onto the rack With appropriate design of the complete ammunition loading system, these functions can be automated The committee recommends the use of state-of -the- art robotics to ... the selected type of ammunition in a magazine or rack, guiding the robot to acquire the round, and guiding the robot to insert the round into the breech Although it is certainly possible to design...
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Applications of Robotics and Artificial Intelligence Part 7 ppsx
... In the diagnostic mode it would instruct the operator not only in the sequence of tests and how to run them, but also in the visual or aural features to look for and their proper sequence In the ... maintenance mode the system would describe the sequence of tests or examinations that should be performed and what to expect at each step In the repair mode the system would guide the operator on the correct ... of the project was to study audible information versus visual display For example, the response to the FUEL command is to state the amount of fuel or flying time left; the AMMO command tells the...
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Applications of Robotics and Artificial Intelligence Part 8 doc
... II, when the studies of aircraft accidents identified a number of pilot errors caused by the design of the plane Since then, military R&D has included the analysis of human factors in the design ... estimates in the matrix, therefore, represent the committee ' s estimate of the costs of a single contractor based on the number of man years of a fully supported senior engineer Believing that the Army ... best support the ongoing operation Together, these men simultaneously fight the current battle and plan the next operation Thus, efforts must be made to alleviate fatigue and stress There is a...
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