Publications

729 publications

• 2007

  Data acquisition from nonuniform arrays based on sine-wave crossings

  I.Bilinskis, M.Min, A.Rybakov

  Abstract

  <p>I.Bilinskis, M.Min, A.Rybakov. Data acquisition from nonuniform arrays based on sine-wave crossings. Proceedings of the “2007 Workshop on Digital Alias-free Signal Processing” (WDASP’07), 17 April 2007, London, UK, pp. 8-13.</p>
• 2007

  Signal Reconstruction from Multiple Level Crossings Using Asymmetric Constructing Functions. Electronics and Electrical Engineering

  R.Shavelis

  Abstract

  <p>R.Shavelis. Signal Reconstruction from Multiple Level Crossings Using Asymmetric Constructing Functions. Electronics and Electrical Engineering. – Kaunas: Technologija, Vol. 77, No. 5, pp. 57-60, April 2007.</p>
• 2007

  A2 Paradox in Statistical Processing of Weak Signals

  K.Kruminsh, A.Lorencs, V.Plocinsh

  Abstract

  <p>K.Kruminsh, A.Lorencs, V.Plocinsh. A2 Paradox in Statistical Processing of Weak Signals. Automatic Control and Computer Sciences (English Translation of Avtomatika i Vichislitel'naja Tekhnika), Allerton Press, Inc., Vol.41, Number 1, Jan-Feb 2007, 1-9<br /> A statistical method for the detection and conversion of weak ultrabandwidth radar signals in a mode of small sample size is investigated by means of modeling and analytic calculations. The newly discovered and demonstrated phenomenon in signal processing is called the A2 paradox.</p>
• 2007

  Using mini-max method for real-time systems energy optimizatio

  A.Baums

  Abstract

  <p>A.Baums. Using mini-max method for real-time systems energy optimization. Scientific Proceedings of Riga Tecchnical College, 2007 pp.12-17</p>
• 2007

  Optimal recourse utilization of a mobile telecommunications networks

  N.Bogomolova, O.Denisieva, A.Gobzemis

  Abstract

  <p>N.Bogomolova, O.Denisieva, A.Gobzemis. Optimal recourse utilization of a mobile telecommunications networks. Proc. of the International Conference ”Mathematical methods for increasing efficiency of information networks”, Grodno, Belarus, 2007, pp. 19-24.</p>
• 2007

  Speech sampling by level-crossing and its reconstruction using spline-based filtering

  M.Greitans, R.Shavelis

  Abstract

  <p>M.Greitans, R.Shavelis. Speech sampling by level-crossing and its reconstruction using spline-based filtering. 14th International Conference IWSSIP 2007, Maribor, Slovenia, June 2007.</p> <div id="gtx-trans" style="position: absolute; left: 1314px; top: 0px;"> <div class="gtx-trans-icon"></div> </div>
• 2007

  A2 Парадокс в статистической обработке сигналов

  К. Круминьш, А. Лоренц, В. Плоциньш

  Abstract

  <p>К. Круминьш, А. Лоренц, В. Плоциньш. A2 Парадокс в статистической обработке сигналов. Автоматика и вычислительная техника. 2007. - No.1. С. 3-14.<br /> Путём моделирования и аналитических расчётов исследуется статистический метод обнаружения и преобразования слабых сигналов сверхшироко-полосной радиолокации в режиме малого количества выборок. Обнаруженный и доказанный феномен обработки сигналов назван А2 парадоксом.</p>
• 2007

  A method to increase the number of users of a mobile telecommunications networks

  O.Denisieva, A.Gobzemis

  Abstract

  <p>O.Denisieva, A.Gobzemis. A method to increase the number of users of a mobile telecommunications networks. Rīgas Tehniskas koledžas zinātniskie raksti. – R., RTU, 2007, lpp. 8-11.</p>
• 2007

  Spline-based signal reconstruction algorithm from multiple level crossing samples

  M.Greitans, R.Shavelis

  Abstract

  <p>M.Greitans, R.Shavelis. Spline-based signal reconstruction algorithm from multiple level crossing samples. 7th International Conference SampTA 2007, Thessaloniki, Greece, June 2007, published on CD.</p>
• 2007

  Multi task real-time system energy consumption minimization using Mini-Max method

  A. Baums

  Abstract

  <p>A. Baums, „Multi task real-time system energy consumption minimization using Mini-Max method” , Electronica ir Electrotechnica, Kaunas, 2007. No. 5 (77), pp.61-65.</p> <p>Abstract</p> <p>Energy consumption reduction is a task of primary<br /> importance in embedded signal processing systems: sensor<br /> networks, mobile robots, wearable computers etc. [1].<br /> Dynamic voltage scaling (DVS) is one of the most<br /> effective energy reduction technology [2,3,4,5,6]. Usually<br /> there are no or few problems if DVS is used in soft real-times<br /> system design or for task scheduling, where deadlines can be<br /> missed if the Quality of Service is kept [7,8,9].<br /> It is different for hard real-time systems where is<br /> necessary to provide that the task never miss its deadline<br /> and the energy saving is maximized. The problems arise in<br /> on-line systems where the task execution time is unknown<br /> at the starting moment of the ordinary task. Therefore the<br /> best energy reduction regime can not be selected. In<br /> majority of investigations and publications this problem is<br /> solved analyzing periodic task executions with off- line<br /> determined execution times and determined priorities.<br /> The author has proposed the method of on-line<br /> minimization for the hard task energy consumption in [10].<br /> This method named mini-max is a DVS modification. The<br /> suitability investigation of th is method for different single<br /> task realization regimes was developed in [11]. In this<br /> article the mini-max method suitability for multitask hard<br /> real-time systems with earliest -deadlines first (EDF) and<br /> rate-monotonic scheduling (RMS) was investigated and the<br /> results are presented.</p>
• 2006

  Classification of Infinite Words

  J.Buls

  Abstract

  <p>J.Buls. Classification of Infinite Words. 6. Latvijas matemātikas biedrības konference. Tēzes, Liepāja, 7.-8.aprīlis 2006, 16.lapp.</p>
• 2006

  Управление базовым смещением

  В. Беспалько

  Abstract

  <p>В. Беспалько. Управление базовым смещением. «Схемотехника», №5, 2006, с.17</p>
• 2006

  Estimating the variance of stroboscopically transformed noise

  A.A.Lorencs

  Abstract

  <p>A.A.Lorencs. Estimating the variance of stroboscopically transformed noise // Automatic Control and Computer Sciences, Allerton Press, Inc., 2006. Nr.3. pp.9-15.<br /> A discrete-stroboscopic method of transforming the noise produced by the Schottky noise of electronic devices that affects a detected signal is considered. The process of transforming the noise is based on a statistical method of transformation with fixed threshold proposed by K. Kruminsh and O.Zaytsev [1]. The upper bound of the value of the zero signal obtained is improved.</p>
• 2006

  Оценка дисперсии стробоскопически преобразованного шума

  А.А.Лоренц

  Abstract

  <p>А.А.Лоренц. Оценка дисперсии стробоскопически преобразованного шума// Автоматика и вычислительная техника. 2006. №3 . c.13-22.<br /> Рассматривается дискретно-стробоскопический метод преобразования шума, произведённого дробовым эффектом электронных приборов и воздейст-вующим на обнаруживаемый сигнал. В основе преобразования шума лежит статистический метод преобразования с фиксированным порогом, предложенный К.Круминьшем и О.Зайцевым в [1]. Уточняется верхняя оценка, получаемого значения нулевого сигнала.</p> <div id="gtx-trans" style="position: absolute; left: -23px; top: 0px;"> <div class="gtx-trans-icon"></div> </div>
• 2006

  Knowledge management problems in the collections of risky objects

  A. Ermuiza

  Abstract

  <p>A. Ermuiza. Knowledge management problems in the collections of risky objects. International Conference on Operational Research: Simulation and Optimisation in Business and Industry. H. Pranevicius, O. Vaarmann and E. Zavadskas (Eds), May 17-20, 2006, Tallinn, Estonia, pp. 235-238.</p>
• 2006

  Adaptive computer-aided teaching methods based on student model

  J.Bule

  Abstract

  <p>J.Bule. Adaptive computer-aided teaching methods based on student model. Proc. of First International Conference New Information Technologies in Education, ITEA-2006, 29.-31. May 2006, Kiev, Ukraine, pp. 221-230.</p>
• 2006

  Elementary Symmetric Polynomials in Random Variables

  A.Lorencs

  Abstract

  <p>A.Lorencs. Elementary Symmetric Polynomials in Random Variables. – (Pilns teksts pieņemts publicēšanai in Proceedings of 9th International Vilnius Conference on Probability Theory and Mathematical Statistics.)</p>
• 2006

  Virtual instrumentation in an extended frequency range using Digital Alias-free Signal Processing

  M. Greitans

  Abstract

  <p>M. Greitans “Virtual instrumentation in an extended frequency range using Digital Alias-free Signal Processing”, Proc.of the 2006 Remote Engineering and Vitual Instrumentation (REV) Symposium, Maribor, Slovenia, Jun. 2006.</p>
• 2006

  Elementary Symmetric Polynomials in Random Variables

  A. Lorencs

  Abstract

  <p>Elementary Symmetric Polynomials in Random Variables. – 9th International Vilnius Conference on Probability Theory and Mathematical Statistics. Abstracts of Communications, June 25-30, 2006, p.215.</p>
• 2006

  Tracking time selection of reflected signals in satellite laser ranging

  A.S. Rybakov

  Abstract

  <p>Tracking time selection of reflected signals in satellite laser ranging // Automatic Control and Computer Sciences. Allerton Press, Inc., 2006. Nr.4. pp.9-14.<br /> An algorithm for trackingtime selection of signals reflected by an Earth satellite that is stable in the presence of anomalous outliers is proposed. The capabilities of the algorithm are investigated in processing of physical data from ranging measurements of satellites.</p>