Dr Bill Chambers
Print version
Visiting Lecturer
Member of the Centre for Telecommunications Research
Division of Engineering
King's College London
Strand
London WC2R 2LS
UK
Tel +44 (0)20 7848 2368
Fax +44 (0)20 7848 2664
Email Dr Bill Chambers
Member of the Centre for Telecommunications Research
Division of Engineering
King's College London
Strand
London WC2R 2LS
UK
Tel +44 (0)20 7848 2368
Fax +44 (0)20 7848 2664
Email Dr Bill Chambers
Biography
Dr William G Chambers was born in Leeds, England, in 1937. He received his degree in mathematics from the University of Cambridge in 1959 and his PhD in 1963. He was a lecturer in mathematics at Westfield College and at Royal Holloway and Bedford New College, both in the the University of London, until his transfer to the Electronic Engineering Department at King's College London in 1986.
He has worked in a number of fields including solid-state physics and Fourier transform spectroscopy. Currently his main interests are in coding theory, in cryptology, in chaos theory, and in spread-spectrum communications. He is the author of a book Basics of Communications and Coding (Oxford University Press 1985) and of over forty articles in refereed journals.
He retired in August 2002, but is still an honorary member of the group!
He has worked in a number of fields including solid-state physics and Fourier transform spectroscopy. Currently his main interests are in coding theory, in cryptology, in chaos theory, and in spread-spectrum communications. He is the author of a book Basics of Communications and Coding (Oxford University Press 1985) and of over forty articles in refereed journals.
He retired in August 2002, but is still an honorary member of the group!
Research interests
- Coding theory
- Cryptography
- Chaos theory
- Spread-spectrum communications
Publications
1. WG Chambers and JD Golic, "Fast Reconstruction of Clock-control Sequence", Electronics Letters 38(20), 1174-1175, Sep 26 2002.
2. WG Chambers and D Gollmann, "Embedding Attacks on Step[1..d] Clock-controlled Generators", Electronics Letters 36(21), 1771-1773, Oct 12 2000.
3. F Said, AH Aghvami and WG Chambers, "Improving Random Interleaver For Turbo Codes", Electronics Letters 35(25), 2194-2195, Dec 9 1999.
4. WG Chambers, "Comments on `Chaotic Digital Encoding: An Approach To Secure Communication'", IEEE Transactions on Circuits and Systems II - Analog and Digital Signal Processing 46(11), 1445-1447, Nov 1999.
5. WG Chambers, "Orbit-periods in Second-order Finite-precision Digital Filters with Overflow", International Journal of Bifurcation and Chaos 9(8), 1669-1674, Aug 1999.
6. H Azad, AH Aghvami and WG Chambers, "Multiservice/multirate Pure CDMA for Mobile Communications", IEEE Transactions on Vehicular Technology 48(5), 1404-1413, Sep 1999.
7. P Ashwin, W Chambers and G Petkov, "Lossless Digital Filter Overflow Oscillations; Approximation of Invariant Fractals", International Journal of Bifurcation and Chaos 7(11), 2603-2610, Nov 1997.
8. WG Chambers and SJ Shepherd, "Mutually Clock-controlled Cipher Keystream Generators", Electronics Letters 33(12), 1020-1021, Jun 5 1997.
9. SR Blackburn and WG Chambers, "Some Remarks on an Algorithm of Fitzpatrick", IEEE Transactions on Information Theory 42(4), 1269-1271, Jul 1996.
10. CKW Wong, F Marvasti and WG Chambers, "Implementation of Recovery of Speech with Impulsive Noise on a DSP Chip", Electronics Letters 31(17), 1412-1413, Aug 17 1995.
11. WG Chambers, RE Peile, KY Tsie and N Zein, "Algorithm for Solving the Welch-Berlekamp Key-equation with a Simplified Proof", Electronics Letters 29(18), 1620-1621, Sep 2 1993.
12. AD Barnard, JR Silvester and WG Chambers, "Guaranteeing the Period of Linear Recurring Sequences (mod(2e))", IEE Proceedings-E: Computers and Digital Techniques 140(5), 243-245, Sep 1993.
13. WG Chambers, "Simulation of Rare Events in Gaussian-processes", Electronics Letters 29(15), 1384-1385, Jul 22 1993.
14. WG Chambers, "Solution of Welch-berlekamp Key Equation by Euclidean Algorithm", Electronics Letters 29(11), 1031-1031, May 27 1993.
15. WG Chambers, "On Binary Sequences from Recursions Modulo-2e Made Nonlinear by the Bit-by-bit Xor Function", Lecture Notes in Computer Science 547, 200-204, 1991.
16. NF Zein and WG Chambers, "Serial Acquisition in a 16 Khop/s Fast-frequency-hop System", IEE Proceedings-I: Communications Speech and Vision 138(3), 141-147, Jun 1991.
17. WG Chambers and ZD Dai, "Simple But Effective Modification To a Multiplicative Congruential Random-number Generator", IEE Proceedings-E: Computers and Digital Techniques 138(3), 121-122, May 1991.
18. D Gollmann and WG Chambers, "A Cryptanalysis of Stepk,m-cascades", Lecture Notes In Computer Science 434, 680-687, 1990.
19. BJM Smeets and WG Chambers, "Windmill PN-sequence Generators", IEE Proceedings-E: Computers and Digital Techniques 136(5), 401-404, Sep 1989.
20. WG Chambers, "Crossed-field Antenna", Electronics & Wireless World 95(1641), 682-682, Jul 1989.
21. D Gollmann and WG Chambers, "Clock-controlled Shift Registers - A Review", IEEE Journal On Selected Areas In Communications 7(4), 525-533, May 1989.
22. BJM Smeets and WG Chambers, "Windmill Generators - A Generalization and an Observation of How Many There Are", Lecture Notes In Computer Science 330, 325-330, 1988.
23. WG Chambers and D Gollmann, "Lock-in Effect in Cascades of Clock-controlled Shift-registers", Lecture Notes In Computer Science 330, 331-343, 1988.
24. WG Chambers, AE Costley and TJ Parker, "Characteristic Curves for the Spectroscopic Performance of Freestanding Wire Grids at Millimeter and Submillimeter Wavelengths", International Journal of Infrared and Millimeter Waves 9(2), 157-172, Feb 1988.
25. WG Chambers, "Clock-controlled Shift Registers in Binary Sequence Generators", IEE Proceedings-E: Computers and Digital Techniques 135(1), 17-24, Jan 1988.
26. WG Chambers and D Gollmann, "Generators For Sequences with Near-maximal Linear Equivalence", IEE Proceedings-E: Computers and Digital Techniques 135(1), 67-69, Jan 1988.
27. WG Chambers, "New Class of Sequence Sets with Good Autocorrelation and Cross-correlation Functions", IEE Proceedings-F: Radar and Signal Processing 134(4), 428-429, Jul 1987.
28. WG Chambers and SM Jennings, "Linear Equivalence of Certain BRM Shift-register Sequences", Electronics Letters 20(24), 1018-1019, 1984.
29. WG Chambers, "Scattering of Electrons By Impurities in a Weak Magnetic-field - A Comment", Physical Review B 27(12), 7793-7795, 1983.
30. WG Chambers, "A Lower Bound on the Information Capacity of a Quantum Narrow-band Free-space Link", Journal of Physics A - Mathematical and General 14(10), 2625-2630, 1981.
31. WG Chambers, "Quantum Bounds on the Information Capacity of Narrow-band Free-space Links Without Extraneous Noise", Journal of Physics A - Mathematical and General 14(1), 133-143, 1981.
A full list of publications is given in the CTR publication list
2. WG Chambers and D Gollmann, "Embedding Attacks on Step[1..d] Clock-controlled Generators", Electronics Letters 36(21), 1771-1773, Oct 12 2000.
3. F Said, AH Aghvami and WG Chambers, "Improving Random Interleaver For Turbo Codes", Electronics Letters 35(25), 2194-2195, Dec 9 1999.
4. WG Chambers, "Comments on `Chaotic Digital Encoding: An Approach To Secure Communication'", IEEE Transactions on Circuits and Systems II - Analog and Digital Signal Processing 46(11), 1445-1447, Nov 1999.
5. WG Chambers, "Orbit-periods in Second-order Finite-precision Digital Filters with Overflow", International Journal of Bifurcation and Chaos 9(8), 1669-1674, Aug 1999.
6. H Azad, AH Aghvami and WG Chambers, "Multiservice/multirate Pure CDMA for Mobile Communications", IEEE Transactions on Vehicular Technology 48(5), 1404-1413, Sep 1999.
7. P Ashwin, W Chambers and G Petkov, "Lossless Digital Filter Overflow Oscillations; Approximation of Invariant Fractals", International Journal of Bifurcation and Chaos 7(11), 2603-2610, Nov 1997.
8. WG Chambers and SJ Shepherd, "Mutually Clock-controlled Cipher Keystream Generators", Electronics Letters 33(12), 1020-1021, Jun 5 1997.
9. SR Blackburn and WG Chambers, "Some Remarks on an Algorithm of Fitzpatrick", IEEE Transactions on Information Theory 42(4), 1269-1271, Jul 1996.
10. CKW Wong, F Marvasti and WG Chambers, "Implementation of Recovery of Speech with Impulsive Noise on a DSP Chip", Electronics Letters 31(17), 1412-1413, Aug 17 1995.
11. WG Chambers, RE Peile, KY Tsie and N Zein, "Algorithm for Solving the Welch-Berlekamp Key-equation with a Simplified Proof", Electronics Letters 29(18), 1620-1621, Sep 2 1993.
12. AD Barnard, JR Silvester and WG Chambers, "Guaranteeing the Period of Linear Recurring Sequences (mod(2e))", IEE Proceedings-E: Computers and Digital Techniques 140(5), 243-245, Sep 1993.
13. WG Chambers, "Simulation of Rare Events in Gaussian-processes", Electronics Letters 29(15), 1384-1385, Jul 22 1993.
14. WG Chambers, "Solution of Welch-berlekamp Key Equation by Euclidean Algorithm", Electronics Letters 29(11), 1031-1031, May 27 1993.
15. WG Chambers, "On Binary Sequences from Recursions Modulo-2e Made Nonlinear by the Bit-by-bit Xor Function", Lecture Notes in Computer Science 547, 200-204, 1991.
16. NF Zein and WG Chambers, "Serial Acquisition in a 16 Khop/s Fast-frequency-hop System", IEE Proceedings-I: Communications Speech and Vision 138(3), 141-147, Jun 1991.
17. WG Chambers and ZD Dai, "Simple But Effective Modification To a Multiplicative Congruential Random-number Generator", IEE Proceedings-E: Computers and Digital Techniques 138(3), 121-122, May 1991.
18. D Gollmann and WG Chambers, "A Cryptanalysis of Stepk,m-cascades", Lecture Notes In Computer Science 434, 680-687, 1990.
19. BJM Smeets and WG Chambers, "Windmill PN-sequence Generators", IEE Proceedings-E: Computers and Digital Techniques 136(5), 401-404, Sep 1989.
20. WG Chambers, "Crossed-field Antenna", Electronics & Wireless World 95(1641), 682-682, Jul 1989.
21. D Gollmann and WG Chambers, "Clock-controlled Shift Registers - A Review", IEEE Journal On Selected Areas In Communications 7(4), 525-533, May 1989.
22. BJM Smeets and WG Chambers, "Windmill Generators - A Generalization and an Observation of How Many There Are", Lecture Notes In Computer Science 330, 325-330, 1988.
23. WG Chambers and D Gollmann, "Lock-in Effect in Cascades of Clock-controlled Shift-registers", Lecture Notes In Computer Science 330, 331-343, 1988.
24. WG Chambers, AE Costley and TJ Parker, "Characteristic Curves for the Spectroscopic Performance of Freestanding Wire Grids at Millimeter and Submillimeter Wavelengths", International Journal of Infrared and Millimeter Waves 9(2), 157-172, Feb 1988.
25. WG Chambers, "Clock-controlled Shift Registers in Binary Sequence Generators", IEE Proceedings-E: Computers and Digital Techniques 135(1), 17-24, Jan 1988.
26. WG Chambers and D Gollmann, "Generators For Sequences with Near-maximal Linear Equivalence", IEE Proceedings-E: Computers and Digital Techniques 135(1), 67-69, Jan 1988.
27. WG Chambers, "New Class of Sequence Sets with Good Autocorrelation and Cross-correlation Functions", IEE Proceedings-F: Radar and Signal Processing 134(4), 428-429, Jul 1987.
28. WG Chambers and SM Jennings, "Linear Equivalence of Certain BRM Shift-register Sequences", Electronics Letters 20(24), 1018-1019, 1984.
29. WG Chambers, "Scattering of Electrons By Impurities in a Weak Magnetic-field - A Comment", Physical Review B 27(12), 7793-7795, 1983.
30. WG Chambers, "A Lower Bound on the Information Capacity of a Quantum Narrow-band Free-space Link", Journal of Physics A - Mathematical and General 14(10), 2625-2630, 1981.
31. WG Chambers, "Quantum Bounds on the Information Capacity of Narrow-band Free-space Links Without Extraneous Noise", Journal of Physics A - Mathematical and General 14(1), 133-143, 1981.
A full list of publications is given in the CTR publication list