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Advanced Signal Processing

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lightbulbAbout this topic
Advanced Signal Processing is a specialized field of engineering and applied mathematics that focuses on the analysis, manipulation, and interpretation of signals using sophisticated algorithms and techniques. It encompasses various methods for enhancing signal quality, extracting information, and optimizing communication systems, often employing concepts from statistics, machine learning, and digital processing.
lightbulbAbout this topic
Advanced Signal Processing is a specialized field of engineering and applied mathematics that focuses on the analysis, manipulation, and interpretation of signals using sophisticated algorithms and techniques. It encompasses various methods for enhancing signal quality, extracting information, and optimizing communication systems, often employing concepts from statistics, machine learning, and digital processing.

Key research themes

1. How can time-frequency analysis and adaptive signal processing improve biomedical signal interpretation and health monitoring?

This research theme explores advanced signal processing techniques such as time-frequency representations (e.g., Hilbert-Huang transform, wavelet transforms, Stockwell transform), adaptive filtering, and deep learning for robust interpretation of complex, non-stationary biomedical signals. The focus is on enhancing the extraction of physiological information (e.g., respiratory rate, ECG components) from noisy and time-varying data, which is critical for accurate diagnostics and continuous health monitoring, especially in wearable sensor applications.

Key finding: Proposed a novel frequency estimation method combining Gaussian average filtering decomposition with Hilbert transform (HGAFD) that outperforms traditional empirical mode decomposition methods by mitigating mode mixing and... Read more
Key finding: Highlighted advances in AI-driven signal processing and deep learning techniques that enable real-time, high-accuracy monitoring of biomedical signals such as ECG, EMG, and PPG despite noise and artefacts. Demonstrated that... Read more
Key finding: Reviewed the critical role of advanced signal processing and deep learning within wearable biosensors for physiological monitoring, including EEG and ECG signal denoising and classification. Showcased how sophisticated... Read more
Key finding: Presented evidence that advanced signal processing methods, including artifact subspace reconstruction for EEG and feature extraction from ECG and EMG signals, significantly enhance biomedical signal quality for clinical... Read more
Key finding: Demonstrated that using continuous wavelet transform scalogram and other time-frequency representations combined with CNN classifiers achieve near-perfect accuracy (~99.9%-100%) for multi-class ECG beat classification,... Read more

2. What novel mathematical frameworks and filter designs advance signal decomposition and feature extraction in multidimensional and nonstationary signal environments?

Research under this theme tackles the theoretical foundations and algorithmic implementations of signal decomposition methods using analytic signals, multidimensional generalizations, higher-dimensional Hilbert transforms, and symmetric variable-length filtering. Such techniques resolve challenges of nonstationarity, mode mixing, and high-dimensionality, enabling improved feature extraction and noise resilience in image processing and other complex signal processing tasks.

Key finding: Provided a comprehensive mathematical overview of analytic signal extensions from one-dimensional signals to higher-dimensional images through multidimensional complex and Clifford analysis. Demonstrated how these... Read more
Key finding: Introduced a novel exact signal decomposition algorithm employing recursively generated variable-length symmetric filters, which preserves signal phase and achieves efficient, noise-robust time-frequency representations. This... Read more
Key finding: Surveyed fingerprint image processing methodologies including enhancement by contextual and log-Gabor filters, and feature extraction strategies utilizing minutiae, correlation, and hybrid approaches. Introduced a method... Read more

3. How are practical implementations and software platforms advancing the deployment of sophisticated digital signal processing systems?

This stream focuses on the design, implementation, and hardware-software integration aspects of digital signal processing systems using contemporary programming environments and hardware architectures. It underscores the role of graphical programming (e.g., LabVIEW), fixed-point and floating-point arithmetic considerations, filter design toolkits, and DSP processor features that facilitate real-time, high-performance signal processing in industrial and academic applications.

Key finding: Presented novel algorithms for parallel and connectionist implementations of signal processing tasks, including discrete Fourier transforms on hypercube structures for improved computation. Proposed integrating algebraic... Read more
Key finding: Emphasized the synergy of advanced AI techniques with modern hardware including GPUs, cloud, and edge computing, enabling high-speed processing and real-time health monitoring. Demonstrated how the integration of sensor... Read more

All papers in Advanced Signal Processing

This paper presents a novel software-defined radio (SDR) platform designed to measure the bit error rate (BER) in vehicle-to-vehicle visible light communication (V2V VLC) technology under real-world conditions. Unlike previous studies... more
Counting the number of soil particles in grain size studies is of great importance, especially in geological, agricultural, environmental, and engineering sciences. It can be used for detailed analysis of soil properties, determining soil... more
In recent years, modeling uncertainties through natural language has attracted growing attention, with Z-numbers, introduced by Zadeh in 2011, being a key concept. A Znumber consists of two fuzzy components: the first represents the... more
هلاقم تاعلاطا هدیکچ لماک یشهوژپ هلاقم تفایرد : 12 رذآ 1392 شریذپ : 16 رذآ 1392 تیاس رد هئارا : 02 ریت 1393 لدم هئارا هب طاقن هیاپ رب يدعب هس ياه هتفرگ رارق هجوت دروم نآ یگداس لیلد تسا . لیلحت زا يرایسب هیاپ ،طاقن ربا رد هتفریذپ تروص ياه... more
Today, the comparison of real images and scenes in virtual reality has become one of the most commonly used issues in daily life. This is because the total goal is to describe these two images in all their aspects. The purpose of this... more
چهره انسان يك شيء ثابت نيست و فاكتورهاي متنوعي که منجر به نمايش‌هاي مختلف چهره مي‌شــوند وجود دارند. در الگوریتم‌های تشخیص چهره، فاكتورهاي ذاتي و تصـادفي که باعث ایجاد اختلاف در ظاهر چهره می‌شوند، وجود داده‌های ناقص در پایگاه داده‌ها، حجم... more
- تشخیص چهره یک عمل تشخیص الگو است که به طور خاص بر روی چهره¬ها انجام می¬شود. تشخیص چهره کاربردهای فراوانی در شناسایی کارت¬های اعتباری، سیستم¬های امنیتی و موارد دیگر دارد. ایجاد یک سیستم تشخیص چهره با دقت بالا، یک چالش بزرگ می‌باشد که در... more
تصوير برداري پزشكي يك تكنيك غير تهاجمي ميباشد كه باعث توسعه قابل توجه در تشخيص و شناسايي بيماريهاي انسان شده است. در ميان تمامي تكنيكهاي تصوير برداري پزشكي، روش تصويربرداري تشديد مغناطيسي داراي محبوبيت بيشتري است. اين روش، براي سلامت... more
In this paper, based on resampling particle filter algorithm, a new method to track moving object is proposed. Determining the number of levels needed for resampling in particle filter algorithm, plays an important role in the time... more
By increasing the number of images, it is essential to provide fast search methods and intelligent filtering of images. To handle images in large datasets, some relevant tags are assigned to each image to for describing its content.... more
A large number of civil registries are available as analog maps that require georeferencing. Besides the quality of the analog maps and control points, the algorithm used for georeferencing also affects the accuracy of the map and the... more
دنمشوه یاه شور زا هدافتــسا اب هک تسا کیرتمویب متسیس کی ،هرهچ ییاسانش متــسیس :همدقم فده .دنک یم دییات و دهد یم صیخشت یکیژولویزیف یاه یگژیو ساسا رب ار ناسنا تیوه ،کیتاموتا HMAX .تــسا هرهچ یــسانشزاب یارب هتفای دوبهب HMAX لدم زا یریگ هرهب... more
The navigation system of vehicles calculates the speed, position and attitude of the moving device relative to a reference frame and provides it to the guidance system. One of the most widely used navigation systems is the inertial...