Important efficiency requirements exist on both the handset and the base-station sides of the telecom world. In handsets, efficiency directly translates into battery life. By increasing cell-phone ...

One of the major challenges in communications system design is to successfully capture signals with adequate fidelity. In order to avoid the effects of blockers, signal distortion, and sensitivity ...

Comprehensive introduction to analysis of continuous and discrete-time signals and systems. Linear time-invariant systems, convolution; Fourier series representations of periodic signals; Continuous ...

Signals and Systems research broadly covers signals, including images and other forms of information and their acquisition, representation, processing, analysis and interpretation, coding, ...

Amplifiers are specified by multiple characteristics including gain, frequency response or bandwidth, power output, linearity, efficiency, noise, and input/output impedances. In wireless applications, ...

Signals that carry information play a central role in technology and engineering — signals ranging from sound and images to sensors, radar, communication, MRI, ultrasound, touch-screens, GPS, and ...

A tough challenge for test engineers is explored in terms of test methods, pitfalls, and measurement errors. For the test engineer, RF and microwave power amplifier testing imposes unique challenges.

(a-b) Reconstructed image of absorption coefficient at (a) low and (b) high light fluence. The entire optoacoustic data (c) was generated using a modified model-based reconstruction algorithm designed ...