2 edition of Analog Viterbi detection for partial-response signaling. found in the catalog.
Analog Viterbi detection for partial-response signaling.
Mohammad Hossein Shakiba
by National Library of Canada = Bibliothèque nationale du Canada in Ottawa
Written in English
|Series||Canadian theses = Thèses canadiennes|
|The Physical Object|
|Number of Pages||130|
High-speed CMOS analog Viterbi detector for 4-PAM partial-response signaling Zand, B.; Johns, D. A. Abstract. Publication: IEEE Journal of Solid-State Circuits. Pub Date: July DOI: /JSSC Bibcode: IJSSCZ full text sources. Publisher |. A Smart Modem for Robust Wireless Data Transmission Over ISM Bands ( MHz, MHz, and MHz) by Patrick Butler and Austin Harney Download PDF In the last few years, radio-frequency technology has advanced by leaps and bounds, resulting in a .
Analog Viterbi decoders have recently been shown to be viable alternatives to their digital counterparts. In fact, a commercial analog class-IV partial-response sequence detector for magnetic read channels has already been reported. Analog decoders offer the advantages of reduced power and size primarily due to the elimination of the A/D. In a known AWGN channel the optimal ML detector of the general CPM signal can be implemented with a bank of matched filters and the Viterbi algorithm. If the carrier phase θ is the only channel parameter, the input signal to the receiver is (10) r (t) = e j ϕ (t) e j θ + w (t) where w (t) is a complex additive white Gaussian noise.
Continuous phase modulation (CPM) is a method for modulation of data commonly used in wireless contrast to other coherent digital phase modulation techniques where the carrier phase abruptly resets to zero at the start of every symbol (e.g. M-PSK), with CPM the carrier phase is modulated in a continuous instance, with QPSK the carrier instantaneously jumps from a . analog performance requirements. However, issues such as how to prevent the deterioration of signal quality during operation owing to errors of interpolating sampling data remain. In this study, we describe a robust read channel employing a novel timing recovery system and a unique Viterbi detector.
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Partial-Response Motivation • Rather than equalizing to a Nyquist pulse, equalize to a partial-response signal • Equalize to in DFE example • Less noise boost • More of the impulse response used to determine transmitted signal • Need to look at a string of received symbols rather than symbol-by-symbol detection — MLSD.
High-speed CMOS analog Viterbi detector for 4-PAM partial-response signaling Conference Paper in IEEE Journal of Solid-State Circuits 37(7) October with 23 Reads How we measure. In this paper, a 1-Gb/s analog Viterbi detector based on a 4-PAM duobinary scheme is discussed with experimental results for a /spl mu/m CMOS implemen High-speed CMOS analog Viterbi detector for 4-PAM partial-response signaling - IEEE Journals & MagazineCited by: High-Speed CMOS Analog Viterbi Detector for 4-PAM Partial-Response Signaling Bahram Zand and David A.
Johns, Fellow, IEEE Abstract— In this paper, a 1-Gb/s analog Viterbi detector based on a 4-PAM duobinary scheme is discussed with experi- mental results for a m CMOS implementation.
Following an initial 5 bit analog-to-digital conversion of the ternary waveform, the Viterbi detector is implemented entirely in high-speed digital emitter-coupled logic. An advantage of approximately dB in effective signal-to-noise ratio is gained over a simple level detector, a result which agrees well with the theoretical by: SVENSSON et al.: REDUCED-COMPLEXITY VITERBI DETECTORS I DecislrJn boundary I the transmitted signals sT into the receiver signal space and calculate the distance in this space instead.
For large signal- to-noise ratios the smallest D is of particular interest, This is the minimum Euclidean distance for the mismatched signal. Oass IV partial response 9 A class IV partial response magnetic recording system 10 Detection ofc1ass IV partial response 12 Threshold detection 12 Viterbi detection 12 Maximum-likelihoodsequence estirnation 14 Tbe performance for additive white Gaussian noise 15 The implemmtation of the Viterbi detector This paper presents a unified study of partial-response signaling (PRS) systems and extends previous work on the comparison of PRS schemes.
A PRS system model is introduced which enables the investigation of PRS schemes from the viewpoint of spectral properties such as bandwidth, nulls, and continuity of derivatives.
Several desirable properties of PRS systems and their relation to system. CiteSeerX - Document Details (Isaac Councill, Lee Giles, Pradeep Teregowda): Analog Viterbi decoders are finding widespread use in class-IV partial-response disk-drive applications.
These analog realizations are often used because they are smaller and. Try the new Google Books. Check out the new look and enjoy easier access to your favorite features amplitude analog analysis approaches approximation assume bandwidth becomes behavior carrier channel Chap coherent communication systems compared components condition consider constant corresponding covariance cycle define delay demodulator.
A first-year engineering graduate course in communication theory, stochastic processes, or detection and estimation theory would be preferable. As a text for a graduate-level course, the book can be covered in one semester, and with some compromises even in one quarter.
It is equally suitable for a one- or two-week intensive short course. directed timing recovery, and a 4-state analog Viterbi detector implementation.
The receiver is compliant with XFI jitter spec-iﬁcations for Telecom applications (SONET OC and G “OTU-2”). IndexTerms—Continuous-timeﬁlter,electronicdispersioncom-pensation, ﬁber optic, FIR, maximum likelihood detection, OTN. By using partial response (PR) signaling to spread each sub-symbol over multiple subcarriers, we first compress the signal in time.
The signal is then rearranged such that it is possible to stabilize the envelope, improving the PAPR by up to 5 dB without using excessive time-bandwidth resources. Analog Viterbi decoders are finding widespread use in class-IV partial-response disk drive applications. These analog realizations are often used because they are smaller and consume less power.
A high-speed analog Viterbi detector based on 4-PAM duobinary scheme is designed and implemented in a µm CMOS process. This chip is the first analog integrated implementation of a reduced state sequence detector. Partial-Response Signaling and Applications Minimum-Bandwidth Communication Systems 9 Nyquist Criterion for Zero ISI 9 -2 Nyquist Systems 10 Minimum-Bandwidth PRS Systems 11 DC Ndls 11 Class-IV PRS Scheme 12 Detection of Partial-Response Signais 13 S ymbol-by-SymboI Detection 14 Sequence Detection One-dimensional cellular array processor architecture and design for neural-based partial response (PR) signal detection are presented.
Analog parallel computing approaches have many attractive advantages in achieving low power, low cost, and faster processing speed by its uniquely coupled parallel and distributed processing nature. In this paper, we describe the maximum likelihood sequence.
USA US07/, USA USA US A US A US A US A US A US A US A US A US A Authority US United States Prior art keywords best method metric paths path Prior art date Legal status (The legal status is an assumption and is not a legal conclusion. IEEE TRANSACTIONS ON MAGNETICS, VOL. 40, NO.
1, JANUARY The Search for a Practical Iterative Detector for Magnetic Recording Rob Lynch, Member, IEEE, Erozan M.
Kurtas, Member, IEEE, Alex Kuznetsov, Engling Yeo, and Borivoje Nikolic´, Member, IEEE Abstract—The striking benefits of iterative detection have gen- erated strong interest in the disk drive signal processing. The NPML detection is composed of partial response (PR) equalizer and Viterbi detector with noise predictor (noise whitening filter).
The equalizer generates the waveform achieving the specific PR characteristics for removing undesired intersymbol interference (ISI).
Issuu is a digital publishing platform that makes it simple to publish magazines, catalogs, newspapers, books, and more online. Easily share your publications and get them in front of Issuu’s.In computer data storage, partial-response maximum-likelihood (PRML) is a method for recovering the digital data from the weak analog read-back signal picked up by the head of a magnetic disk drive or tape was introduced to recover data more reliably or at a greater areal-density than earlier simpler schemes such as advances are important because most of the.There are 3 chapters on timing recovery; chapters on Viterbi coding; Equalization (Linear, Partial Response, DFE); Modulation and Encoding.
The book has an interesting way of presenting mixed discrete time and continuous time signaling. It has excellent references to published papers and other books. (Although they might be a little dated.)Reviews: 4.