A power-efficient all-digital IR-UWB transmitter with configurable pulse shaping by utilizing a digital amplitude modulation technique

2012 ◽  
Author(s):  
Shuli Geng ◽  
Xican Chen ◽  
Woogeun Rhee ◽  
Jongjin Kim ◽  
Dongwook Kim ◽  
...  
Keyword(s):  
Amplitude Modulation ◽  
Pulse Shaping ◽  
Power Efficient ◽  
Modulation Technique

Amplitude modulation technique for designing metalenses with apodized and enhanced resolution focal spots

2017 ◽  
Vol 393 ◽  
pp. 77-82 ◽  
Author(s):  
Mahdieh Hashemi ◽  
Amin Moazami ◽  
Mahin Naserpour ◽  
Carlos J. Zapata-Rodríguez
Keyword(s):  
Amplitude Modulation ◽  
Modulation Technique ◽  
Enhanced Resolution

scholarly journals Performance Evaluation of PAM-4 and PAM-2 Modulation Techniques using MATLAB

2018 ◽  
Vol 3 (5) ◽  
pp. 36
Author(s):  
Waliu Olalekan Apena
Keyword(s):  
Bit Error Rate ◽  
Error Rate ◽  
Amplitude Modulation ◽  
Pulse Amplitude ◽  
Data Rate ◽  
Pulse Amplitude Modulation ◽  
Eye Diagram ◽  
Modulation Technique ◽  
Modulation Techniques ◽  
Four Levels

Two Levels Pulse Amplitude Modulation techniques (PAM-2) is failing to cope with the increase in appetite for data and higher data rate with respect to noisy channel. Hence, Four Levels Pulse Amplitude Modulation techniques (PAM-4) was developed. PAM-4 is said to enable two times the data rate as compared to PAM-2. PAM-4 has its pros and cons as compared with PAM-2. This paper compares the performance of Two Levels Pulse Amplitude Modulation technique to Four Levels Pulse Amplitude Modulation technique. The communication system was modeled using Simulink R2016b, the signal passed through an Additive White Gaussian Noise (AWGN) Channel and eye diagram scope was adopted to evaluate the corresponding signal. The study compared eye diagram to evaluate both PAM-2 and PAM-4 at same channel condition. Bit error rate (BER) analysis of the two signals were studied and the results for the corresponding signals were compared. It was observed that the performance of PAM-2 surpasses PAM-4 in terms of the bit error rate analysis. The study shows similar characteristic for Symbol Error Rate Probability curve. The result revealed that PAM-4 is more susceptible to noise than PAM-2.

scholarly journals Experimental study of ultracold cesium atom photoassociation spectrum using an amplitude modulation technique

2007 ◽  
Vol 56 (11) ◽  
pp. 6373
Author(s):  
Wang Li-Rong ◽  
Ma Jie ◽  
Zhang Lin-Jie ◽  
Xiao Lian-Tuan ◽  
Jia Suo-Tang
Keyword(s):  
Experimental Study ◽  
Amplitude Modulation ◽  
Cesium Atom ◽  
Modulation Technique
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