`signal-processing` Related Article Results

Van Eck Phreaking (Van Eck Radiation) is an eavesdropping technique that enables the remote reconstruction of displayed information by capturing and processing unintentional electromagnetic waves emitted by electronic devices, particularly computer monitors. The term is named after Wim van Eck, who in 1985 brought this security vulnerability to public attention by demonstrating that the content of cathode ray tube (CRT) displays could be remotely observed using a modified standard television rec

Radar technologies enable the determination of targets’ position, velocity, and other characteristics by exploiting reflections of electromagnetic waves. In recent years, Multiple Input Multiple Output (MIMO) technology has been integrated into radar applications to overcome the limitations of conventional radar systems and enhance target detection accuracy. MIMO radars employ multiple transmit and receive antennas to provide signal diversity, delivering superior performance in resolving and tra

Electrical and Electronics Engineering is a engineering discipline focused on the generation, transmission, and distribution of electrical energy as well as the design, development, and implementation of electronic systems. This field encompasses topics such as electronic circuits, communication systems, computer hardware and software, integrated technologies, biomedical systems, microprocessors and microcontroller, image and audio processing systems, high voltage techniques, and electromagnetic

Fast Fourier Transform (FFT) is a collection of algorithms that enable the more efficient computation of the Fourier transform. Its primary purpose is to reduce the computational time required to determine the frequency components of a signal.The classical Discrete Fourier Transform (DFT) has a complexity ofwhile FFT algorithms reduce this time tocomplexity.Basic PrinciplesFFT algorithms simplify computational steps by exploiting the underlying mathematical structure of the Fourier transform. In

The Wiener filter is an optimization-based filtering technique used in signal processing and image processing. As illustrated in Figure 1, it was developed to restore a noisy signal or image to its closest approximation of the original. This technique is widely applied in fields such as radar, medical imaging, and telecommunications. Its fundamental principle is to estimate the optimal filter coefficients that minimize the mean squared error (MSE) by leveraging prior statistical knowledge about

Matched filtering is a vital technique in signal processing, widely used across various fields such as telecommunications, radar, and even gravitational wave detection. This powerful method enhances the detection of a known signal's presence within a noisy environment.Understanding Matched FilteringMatched filtering is a linear filter designed to maximize the signal-to-noise ratio (SNR) of a known signal when it is present in noisy data. The concept relies on correlating the received signal with