scholarly journals Chirp Signal Generator Based on Direct Digitalsynthesizer (Dds) for a Radar At 300 Ghz

In the Modern day electronic fighting Systems the utilization of range has been broadened with a proficient way which makes the recognizable proof of the signal difficult. Modern radars use recurrence and stage tweaked signs to spread their range to enhance the handling gain. The way toward finding the balance arrangement of a perceived signal, the moderate development between signal distinguishing proof and demodulation, is an imperative task of a wise recipient, with various customary resident and military applications. Obviously, with no learning of the transmitted data and various cloud parameters at the authority, for instance, the signal control, carrier repeat and stage offsets, data, and so on., daze distinguishing proof of the adjustment is a troublesome assignment. This turns out to be considerably additionally difficult in certifiable situations. Wideband direct recurrence tweaked (LFM) signal is generally utilized in exact separation estimating radar framework. As customary techniques for creating LFM signal have a great deal of detriments, for example, shakiness and nonlinearity we propose an alternate answer for wideband LFM signal generator in L-band dependent on DDS and recurrence augmentation. The proposed strategy creates the baseband LFM signal utilizing the DDS, and after that includes the baseband motion into the recurrence duplication framework; last we can accomplish an unadulterated L-band wideband LFM signal. The estimation result demonstrates that the proposed can satisfy every prerequisite of anticipant palatably.

Author(s):  
Namosha Veerasamy ◽  
William Aubrey Labuschagne

This article describes how social media has revolutionised the way in which people communicate, interact and engage. This phenomenon has transformed the digital world with its ease, convenience and numerous capabilities for sharing, involving and participating in exchanges. The military is now being confronted with how this platform can be used to aid its activities. When utilised correctly, social media could become a force multiplier for the military. Day-to-day functions, official communications, networking and training are just some of the capabilities that can be supported by social media. However, clear guidance, management and governance are required in order to ensure that the platform is implemented correctly. This article discusses the drive for the use of social media within the military and how it can be utilised for military activities. It addresses the high-level functionalities of social media within the military, as well as an overall approach to guide the process.


Author(s):  
Kyoung-Min Song ◽  
Ki-Woong Lee ◽  
Chang-Hyun Lee ◽  
Woo-Kyung Lee ◽  
Myeong-Jin Lee
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2014 ◽  
Vol 889-890 ◽  
pp. 881-885
Author(s):  
Ling Gang Zeng ◽  
Shou Liang Yang ◽  
Xing Xing Mu

This paper analyzes the function of chirp. A design solution based on SOPC technology chirp signal put forward after the function had been studied both the hardware design and implement method. The chirp signal generator based on SOPC is designed according to the design process of Matlab/Simulink/DSP Builder/ QuartusII. The generator can produce the chirp signal well which is verified by the Matlab/Simulink and QuartusII. The starting frequency, bandwidth, and frequency resolution of chirp signal can be revamped by utilizing SOPC technology. This method is easier to implement since it is simple to design, easy to modify, low cost, no programming.


2020 ◽  
Vol 43 (6) ◽  
pp. 532-540
Author(s):  
Guofu Wang ◽  
Sheng Chen ◽  
Jincai Ye ◽  
Faquan Zhang

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