How does a correlator work?

In radio astronomy the term “correlator” usually refers to a digital device that takes two Nyquist-sampled digital streams representing the voltages present in one or more radio receivers and computes the cross-correlation function as a function of time lag.

How does a leak noise correlator work?

Mathematical algorithms are used to determine the exact location of certain noise profiles (such as hissing leak sound) on the pipe, by correlating the noises that reach both sensors and measuring the difference it takes to travel on the pipe from the leak location to each sensor.

What is acoustic leak detection?

An acoustic leak detection device locates leaks by characterizing and differentiating leak sounds from those of normal water flow through the distribution system.

What is correlator receiver?

A radio receiver used in a simple radio interferometer in which signals from two antennas are multiplied together. As a source passes across the sky, the output from the receiver rises and falls as the signals from the two antennas pass alternately into and out of phase, producing a characteristic fringe pattern.

What is a digital correlator?

Digital Correlator: A Scalable and Efficient FPGA Implementation for Radar Receivers. Abstract: Matched filtering (MF) which maximizes the signal-to-noise ratio (SNR) in presence of additive white noise is one of the core tasks of radar systems.

How do I find a leak in my pipeline?

Pipeline leak detection systems are engineering systems used to detect leak of materials from the pipeline, in order to alert the operator to leak incidents….Pipeline Leak Detection

  1. Wireless Sensor Network.
  2. Leak Location.
  3. Multiphase Flows.
  4. Dynamic Pressure.
  5. Leak Detection System.
  6. Negative Pressure.
  7. Pressure Transmitter.

Why does it sound like water is running in my walls?

Cracked or Leaky Pipe Leaky pipes are one of the top problems associated with dripping water sounds in the wall. Although you can’t see a cracked pipe through the wall, it can create a variety of strange sounds and costly problems like structural damage and increased water costs.

How can I tell if water is leaking behind a wall?

What are the Signs of a Water Leak Behind Walls?

  1. Musty odors.
  2. Visible mold growth on walls and baseboards.
  3. Staining.
  4. Peeling or bubbling paint and wallpaper.
  5. Warped walls.
  6. Buckled ceilings and floors.

Why do I hear dripping in ceiling?

The dripping noise you hear could come from some sort of motion, concussion, or vibration in the pipes themselves. For instance, temperature changes that cause thermal expansion may make pipes produce tapping, ticking, or dripping noises. Abnormal water pressure or air in the pipes can also create such sounds.