The accuracy of modern scientific research and technological advancement is highly reliant
on the ability to accurately measure weak signals. The lock-in amplifier (LIA) represents an …

Nowadays, the modern microelectronics digital communication systems are using low power
and efficient design for wide variety of applications in real world. Recent researchers …

Islanding detection is crucial in both AC and DC grids, failure of which might result in
unstable operating points. This is a key impediment to increase renewable energy …

The extensive use of renewable energy systems with grid-connected inverters (GCIs)
causes harmonic injection. Similarly, the imbalance in energy demand and supply causes …

A frequency downscaling technique for enhancing the accuracy of analog lock-in amplifier
(LIA) architectures in giant magneto-impedance (GMI) sensor applications is presented in …

A lock-in amplifier (LIA) is an instrument that can extract weak signals from extremely noisy
environments, and it is widely used in various precision measurement fields. However, there …

In the fault diagnosis field, the fault feature signal is weak and contaminated by the noise.
The lock-in amplifier is a useful tool for weak signal detection. Aiming to the amplitude error …

Exploring life conditions on the near-Earth planets and satellites before carrying out human
missions is an important task for space agencies. For that purpose, scientific space missions …

The measurement while drilling (MWD) system in underground coal mine currently uses
wire for signal transmission. However, it has shortcomings such as strict technical …

Capsule robots have gained increasing prominence in gastroscopy for their diagnostic
capabilities and noninvasive accessibility to narrow passages with reduced risks. Magnetic …