High-Degree Pulse Compression with a Convex Dispersion Profile

2012 ◽  
Author(s):  
Qian Li ◽  
J. Nathan Kutz ◽  
P. K. A. Wai
Keyword(s):  
Pulse Compression ◽  
Dispersion Profile ◽  
High Degree

Design of Digital Pulse Compression System Based on FPGA

2014 ◽  
Vol 1049-1050 ◽  
pp. 1718-1721
Author(s):  
Yan Xin Yu ◽  
Chun Yang Wang ◽  
Yu Chen ◽  
Ke Yang
Keyword(s):  
Pulse Compression ◽  
Radar Signal ◽  
Real Time Processing ◽  
Compression System ◽  
Development Cycle ◽  
Short Development Cycle ◽  
Digital Pulse ◽  
Fast Processing ◽  
Linear Frequency Modulated Signal ◽  
High Degree

Pulse compression technology is one of the key technologies in the field of modern radar signal processing, can effectively solve the contradiction between action distance and resolution. In this paper, a radar digital pulse compression system is designed and implemented based on FPGA with linear frequency modulated signal. The digital pulse compression module is designed using FFT IP core which can be reused in different periods of DPC, respectively performing FFT and IFFT calculation, so that the hardware consumption is saved significantly. Therefore, compared with other systems, the system designed in this paper has the characters of fast processing speed, high degree of modularity, real-time processing and short development cycle.

Modeling of Pulse Propagation Factor Changes in Type II Second Harmonic Generation

2001 ◽  
Vol 6 (2) ◽  
pp. 51-69 ◽  
Author(s):  
A. Kurtinaitis ◽  
A. Dementjev ◽  
F. Ivanauskas
Keyword(s):  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Pulse Compression ◽  
Pulse Propagation ◽  
Second Harmonic ◽  
Spline Approximation ◽  
Laser Pulses ◽  
Ultrashort Laser Pulses ◽  
Step Method ◽  
High Degree

We describe the simulations of the second harmonic generation of ultrashort laser pulses by numerically solving a system of wave propagation equations. The equations are solved by using a split-step method in twodimensional cyllindrically symmetric space and time coordinates. The diffraction part of a solution uses the Hopscotch type finite-difference scheme on a regular grid. The transport part is solved by using the cubic spline approximation. The obtained numerical results satisfactorily respect energy conservation constraints. The algorithm and program developed make it possible to optimize the process of the second harmonics generation and to identify the conditions where sufficiently high degree of the pulse compression with a relatively low degradation of their quality is achieved.

OPTIMUM DISPERSION PROFILE AND PEDESTAL-FREE SOLITON PULSE COMPRESSION IN DISPERSION-DECREASING FIBER

2003 ◽  
Vol 12 (03) ◽  
pp. 291-305 ◽  
Author(s):  
M. N. VINOJ ◽  
A. U. SEEMA ◽  
V. C. KURIAKOSE
Keyword(s):  
Pulse Compression ◽  
Adiabatic Approximation ◽  
Pulse Propagation ◽  
Integrable Case ◽  
Dispersion Profile ◽  
Gaussian Profile ◽  
Soliton Pulse ◽  
Compression Mechanism ◽  
Optimum Dispersion

We propose soliton pulse compression mechanism in a dispersion decreasing fiber for the integrable case. We have studied the pulse propagation through various dispersion-decreasing profiles in the adiabatic approximation limit. Out of the different profiles studied, Gaussian profile is found to be the best choice for achieving maximum pulse compression and is found that compressed pulse is completely free from pedestals.

scholarly journals High Degree Picosecond Pulse Compression in Chalcogenide-Silicon Slot Waveguide Taper

2016 ◽  
Vol 34 (16) ◽  
pp. 3843-3852 ◽  
Author(s):  
Chao Mei ◽  
Feng Li ◽  
Jinhui Yuan ◽  
Zhe Kang ◽  
Xianting Zhang ◽  
...  
Keyword(s):  
Pulse Compression ◽  
Picosecond Pulse ◽  
Slot Waveguide ◽  
High Degree ◽  
Waveguide Taper
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