chirp signal

Suddenly, the chirping signal impossibly shifted hundreds of yards through the forest in a matter of minutes.

He suddenly realized what had happened, Tifflor's chirping signal had decreased in intensity.

A chirp signal shares the same spectral content with an impulse signal.

Alternatively, a voltage controlled oscillator may be used to generate the chirp signal.

He paid no attention to either Rous or the chirping signal from Tifflor's transmitter.

At last Loy Chuk gave a soft, chirping signal.

As an illustration, a possible received noise sequence is shown, which contains a low amplitude chirp signal obscured within it.

The measuring of chirped signals is equivalently bound to the bandwidth of the transmitted pulses.

The chirp definition above means that the phase of the chirped signal (that is, the argument of the complex exponential), is the quadratic:

Multi-Mode Continuous Phase Chirp Signals for Digital Data Transmission, Int.

The amplitude of random noise is not changed by the compression process, so the signal to noise ratios of received chirp signals are increased in the process.

Nonlinear transient chirp signal modeling of the aortic and pulmonary components of the second heart sound, IEEE Trans.

The chirp signals reflected from targets are amplified in the receiver and then processed by the compression filter to give narrow pulses of high amplitude, as previously described.

A chirp signal can be generated with analog circuitry via a voltage-controlled oscillator (VCO), and a linearly or exponentially ramping control voltage.

Using the air traffic control illuminator, the receiver used pulse compression filtering of a chirp signal, which provided processing gain along with the ability to separate closely spaced targets.

However, unlike in the impulse signal, spectral components of the chirp signal have different phases, i.e., their power spectra are alike but the phase spectra are distinct.

For the compression filter to be matched to the radiated chirp signal, its response is the complex conjugate of the time inverse of the transmit filter's impulse response.

In spread-spectrum usage, surface acoustic wave (SAW) devices such as reflective array compressors (RACs) are often used to generate and demodulate the chirped signals.

On the other hand, many practical applications, such as chirped pulse amplifiers or echolocation systems, use chirp signals instead of impulses because of their inherently lower PAPR.

ZDR imaged the entire cloud using a chirped signal that allowed the receiver to accurately determine range within the cloud by passing each frequency in the chirp to a separate range gate.

The chirp signal is generated directly on the 20 MHz carrier by a digital chirp generator, and fed to the power amplifier, followed by a Transmit/Receive switch and the matching network.

Raveendra Continuous Phase Chirp Signals for M-ary Data Communications, Proceedings of the XXIInd General Assembly of the URSI, Tel Aviv, Israel, 24 August-2 September, 1987.

Chirplet transform, 1991: Mann was the first to propose and reduce to practice a signal representation based on a family of chirp signals, each associated with a coefficient, in a generalization of the wavelet transform that is now referred to as the chirplet transform.

Data Transmission using M-ary Multi-Mode Phase Continuous Chirp Signals, Proc. 9th National Convention of Electronics and Telecommunication Engineers, 25-27 March, 1994, University of Roorkee, Roorkee, Electronic Systems & Applications, Ed.

In both the HF and VHF transceivers, the chirp signal was generated by a swept oscillator synchronized with a STAble Local Oscillator (STALO) in order to preserve the phase coherency for the SAR processing.