Gaussian pulse Generators for subbanded ultra-wideband transmitters

2006 ◽  
Vol 54 (4) ◽  
pp. 1647-1655 ◽  
Author(s):  
D.D. Wentzloff ◽  
A.P. Chandrakasan
Keyword(s):  
Ultra Wideband ◽  
Gaussian Pulse ◽  
Pulse Generators

scholarly journals An Accurate and Compact High Power Monocycle Pulse Transmitter for Microwave Ultra-Wideband Radar Sensors with an enhanced SRD model: Applications for Distance Measurement for lossy materials

2019 ◽  
Vol 8 (3) ◽  
pp. 76-82
Author(s):  
Y. Ahajjam ◽  
O. Aghzout ◽  
J. M. Catala-Civera ◽  
F. Peñaranda-Foix ◽  
A. Driouach
Keyword(s):  
High Power ◽  
Wide Band ◽  
High Amplitude ◽  
Ultra Wideband ◽  
Gaussian Pulse ◽  
Pulse Generators ◽  
Radar Sensors ◽  
Output Amplitude ◽  
Wideband Radar ◽  
Lossy Materials

In This paper, a high power sub-nanosecond pulse transmitter for Ultra-wideband radar sensor is presented. The backbone of the generator is considered as a step recovery diode and unique pulse injected into the circuit, which gives rise to an ultra-wide band Gaussian pulse. The transistor driver and transmission line pulse forming the whole network are investigated in detail.  The main purpose of this work is to transform a square waveform signal to a driving pulse with the timing and the amplitude parameters required by the SRD to form an output Gaussian pulse, and then into high monocycle pulses. In simulation aspect, an improved output response is required, in this way a new model of step recovery diode has been proposed as a sharpener circuit. This proposition was applied to increase the rise-time of the pulses. For a good range radar, a high amplitude pulse is indispensable, especially when it comes to penetrate thick lossy materiel.  In order to overcome this challenge, a simple technique and useful solution is introduced to increase the output amplitude of the transmitter. This technique consists to connect the outputs of two identical pulse generators in parallel respecting the restrictions required. The pulse transmitter circuit is completely fabricated using micro-strip structure technology characteristics. Waveforms of the generated monocycle pulses over 10V in amplitude with 3.5 % in overshoot have been obtained. Good agreement has been achieved between measurement and simulation results.

Design of ultra-wideband Gaussian pulse source for ground penetrating radar

2013 ◽  
Vol 25 (3) ◽  
pp. 680-684
Author(s):  
张春艳 Zhang Chunyan ◽  
赵青 Zhao Qing ◽  
刘成林 Liu Chenglin ◽  
周强 Zhou Qiang ◽  
刘冲 Liu Chong ◽  
...  
Keyword(s):  
Ground Penetrating Radar ◽  
Ultra Wideband ◽  
Gaussian Pulse ◽  
Pulse Source ◽  
Ground Penetrating

Design and performance of high voltage pulse generators for ultra-wideband applications

2001 ◽  
Vol 12 (10) ◽  
pp. 1718-1725 ◽  
Author(s):  
L Pécastaing ◽  
J Paillol ◽  
T Reess ◽  
A Gibert ◽  
P Domens
Keyword(s):  
High Voltage ◽  
Voltage Pulse ◽  
High Voltage Pulse ◽  
Ultra Wideband ◽  
Pulse Generators ◽  
And Performance

Design and Research on Optimization Combination of UWB Pulse Waveform Based on Gaussian Pulse Derived Function

2013 ◽  
Vol 427-429 ◽  
pp. 1995-1998
Author(s):  
Xue Wen He ◽  
Sun Han ◽  
Kuan Gang Fan ◽  
Ying Fei Sheng ◽  
Qing Mei Cao
Keyword(s):  
Spectral Density ◽  
Linear Combination ◽  
Pulse Signal ◽  
Federal Communications Commission ◽  
Ultra Wideband ◽  
Gaussian Pulse ◽  
Spectrum Utilization ◽  
Energy Spectral Density ◽  
Different Order ◽  
Derived Function

This paper analyses time-domain waveform and its unilateral energy spectral density based on the Gaussian pulse former 12 derivative functions. We could conclude that pulse forming factor has a closer relationship with different order number derived function affected the energy spectral density. Therefore, in order to maximize the approximate Federal Communications Commission (FCC) emission mask as much as possible, an iterative algorithm is proposed to optimize the linear combination of the Gaussian pulse former 12 order derived function. Compared with single differential Gaussian pulse, the simulation results show that after linear combination, new ultra-wideband pulse signal could greatly meet the spectrum utilization and indoor radiation mask standards promulgated by the FCC.

Pulse Design for Ultra Wideband System Based on Generalized Gaussian Pulse

2013 ◽  
Vol 340 ◽  
pp. 871-875
Author(s):  
Si Chen ◽  
Hui Chang Zhao ◽  
Yun Xing Yang ◽  
Yong Chen
Keyword(s):  
Modulation Frequency ◽  
Ambiguity Function ◽  
Ultra Wideband ◽  
Gaussian Pulse ◽  
Pulse Design ◽  
Range Resolution ◽  
Range Ambiguity ◽  
System A ◽  
The Relationship ◽  
Scaling Characteristic

In order to improve the detection performance of ultra wideband (UWB) system, a nonlinear scaling UWB pulse based on generalized Gaussian pulse (GGP) was proposed in this paper. Then wideband ambiguity function (WBAF) of the pulse was derived and analyzed to show the relationship between its range ambiguity function and nonlinear scaling characteristic parameters. The simulation demonstrate that such UWB pulse can achieve the thumbtack WBAF, low side lobes and high range resolution can be achieved by increasing modulation frequency offset and decreasing modulation frequency. The simulation result can provide theoretic guidance to UWB pulse design.

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