scholarly journals Low-cost infrared sensor for wildlife detection in vegetation

2017 ◽  
Vol 63 (Special Issue) ◽  
pp. S13-S17
Author(s):  
Lev Jakub ◽  
Shapoval Vadym ◽  
Bartoška Jan ◽  
Kumhála František
Keyword(s):  
High Speed ◽  
High Probability ◽  
Low Cost ◽  
Low Noise ◽  
Infrared Sensor ◽  
Direct Sunlight ◽  
Infrared Technology ◽  
Wildlife Detection ◽  
Infrared Array ◽  
Very High

The protection of wild animals from mutilation or being killed during haymaking is still a serious problem connected with high working speeds and widths of modern harvesting machines. That is why the main aim of this study was to test low-cost, high-speed and low-noise infrared array sensor Melexis MLX90621 for the application of wildlife detection with the potential to be used in front of the mower equipment. The tests with two different crops with or without a hidden dog were made. Results showed that the sensor is able to detect an animal hidden in the crop with very high probability. Nevertheless, direct sunlight conditions can cause the problems when using infrared technology. A simultaneous use of other sensors working on different principle than infrared technology can be thus recommended.

Bipolar device technology challenge and opportunity

1985 ◽  
Vol 63 (6) ◽  
pp. 683-692 ◽  
Author(s):  
H. D. Barber
Keyword(s):  
Integrated Circuits ◽  
High Speed ◽  
Low Cost ◽  
Chemical Vapor ◽  
Low Noise ◽  
Isolation Techniques ◽  
Propagation Delays ◽  
Technological Barriers ◽  
On Chip ◽  
Bipolar Device

Silicon bipolar device technologies provided 65% of the world's integrated circuits in 1983. Where low noise, high current, low or high voltage, high speed or low cost are required, bipolar technologies are used. This paper will review the present status of bipolar device technologies, which make possible 100-ps gate-propagation delays, 150-μm2 gate areas, 1-GHz bandwidth amplifiers, on-chip control of over 1-A, 350-V operation, 14-GHz fT's and 10-ns. analogue-to-8-bit digital conversion. These devices are realized because of advances in isolation techniques, chemical-vapor deposition, photolithography, diffusion, ion implantation, conductor–contact interconnection technology, etching processes, and materials preparation. This paper will discuss some of the fundamental problems, modelling difficulties, and technological barriers that will impact the future development of bipolar integrated circuits.

scholarly journals Non-Linear Mathematical Modelling for Phase Locked Loop

2018 ◽  
Vol 7 (4.10) ◽  
pp. 81
Author(s):  
Prithiviraj R ◽  
Selvakumar J
Keyword(s):  
High Speed ◽  
Linear Models ◽  
Low Cost ◽  
Phase Error ◽  
Phase Locked Loop ◽  
Cmos Technology ◽  
Low Noise ◽  
Voltage Controlled Oscillator ◽  
Loop Filter ◽  
Non Linear

Design of Phase Locked Loop (PLL) plays a vital role in transceiver field. Phase Locked Loop comprises of three blocks, namely Phase and frequency detector, loop filter and voltage-controlled oscillator. The greater advancements in CMOS technology such as high frequency, high speed, low noise and phase error leads to low-cost PLL This work aims to develop higher order non-linear models of general Phase Locked Loop. The condition of stability and choice of loop filter is also determined. Based on the analysis, the transfer function for PLL is determined.  

Understanding the Dimensions of the Broadband Gap

2010 ◽  
pp. 1057-1067
Author(s):  
Maria Rosalia Vicente ◽  
Ana Jesus Lopez
Keyword(s):  
High Speed ◽  
Business Models ◽  
Low Cost ◽  
Interactive Media ◽  
The Internet ◽  
Wireless Broadband ◽  
New Business ◽  
Communication Habits ◽  
Very High ◽  
New Business Models

Over the last decade the Internet has brought about significant changes in the economies and societies worldwide. It has changed communication habits, adapting incrementally to the needs of the users of the networks. It has created a world-wide web of knowledge sharing, creativity, and collaboration and has fostered globalization. In this context, new and traditional players are adapting to the challenges through new business models. Nowadays, the diffusion of broadband is providing the basis for the transition to the Internet of the future. In the next years the development of very high-speed networks will permit the launch of new interactive media and content services. The widespread expansion of low cost wireless broadband will allow the Internet to become more pervasive (European Commission, 2006).

Hardware efficient receiver for low-cost ultra-high rate 60 GHz wireless communications

2011 ◽  
Vol 3 (2) ◽  
pp. 121-129 ◽  
Author(s):  
Ahmet Çağrı Ulusoy ◽  
Gang Liu ◽  
Andreas Trasser ◽  
Hermann Schumacher
Keyword(s):  
Communication Systems ◽  
High Speed ◽  
Low Cost ◽  
Intermediate Frequency ◽  
Low Noise ◽  
High Rate ◽  
Low Noise Amplifiers ◽  
Range Data ◽  
60 Ghz ◽  
5 Ghz

This paper presents a hardware efficient receiver architecture, to be used in low-cost, ultra-high rate 60 GHz wireless communication systems. The receiver utilizes a simple, feed-forward carrier recovery concept, performing phase and frequency synchronization in the analog domain. This enables 1-bit baseband processing without a need of ultra-high speed and high precision analog-to-digital conversion, offering a strong simplification of the system architecture and comparatively low power consumption. In a first prototype implementation, the receiver is realized in a low-cost SiGe technology as two separate ICs: the 60 GHz/5 GHz downconverter, and the intermediate frequency synchronous demodulator. The simple synchronous reception concept is experimentally validated for up to 3.5 Gbit/s data rate, which constituted the limit of the existing experimental setup. Furthermore, the downconverter demonstrates that low-cost technologies (fop/fmax ~ 0.75) can be used to realize short-range data links at 60 GHz, with low-noise amplifiers in a more performant technology as needed.

Low-cost, Low-noise Vref Design for High-speed DDR Memory Modules

2006 ◽  
Author(s):  
Yutaka Uematsu ◽  
Eiichi Suzuki ◽  
Hideki Osaka ◽  
Yoji Nishio ◽  
Susumu Hatano
Keyword(s):  
High Speed ◽  
Low Cost ◽  
Low Noise ◽  
Memory Modules

scholarly journals A 1GHz Low-cost, Ultra Low-noise Preamplifier

2020 ◽  
Vol 11 ◽  
pp. 120-126
Author(s):  
J. Chatzakis ◽  
S. Hassan ◽  
E. Clark ◽  
M. Tatarakis
Keyword(s):  
Integrated Circuits ◽  
High Speed ◽  
Low Cost ◽  
Low Noise ◽  
Silicon Photomultipliers ◽  
Low Frequencies ◽  
Measurement Systems ◽  
Speed Measurement ◽  
Ultra Low Noise ◽  
Low Noise Preamplifier

A high quality, compact 1GHz preamplifier suitable for operation in conjunction with micro channelplates (MCP) and silicon Photomultipliers (SiPM), that is comprised of two integrated circuits is described inthis paper. The amplifier requires no adjustment and has a flat response from low frequencies and adequatebandwidth for high speed measurement systems.

scholarly journals A New Hardware Architecture for Fuzzy Logic System Acceleration

2016 ◽  
Vol 12 (2) ◽  
pp. 188-197
Author(s):  
Aumalhuda Abood ◽  
Mohammed Jodha ◽  
Majid Alwan
Keyword(s):  
Fuzzy Logic ◽  
High Speed ◽  
Low Cost ◽  
Fuzzy Logic System ◽  
Hardware Architecture ◽  
Speed Up ◽  
Gate Array ◽  
Logic Array ◽  
Very High ◽  
Logic System

In this work, a new architecture is designed for fuzzy logic system. The proposed architecture is implemented on field programed gate array (FPGA). The hardware designed fuzzy systemimproves the excution speed with very high speed up factor using low cost availble kits such as FPGA. The implementation of the proposed architecture uses very low amount of logic elements and logic array blocks as proven when implementing the proposed architucture on FPGA.

Decomposition of the metastable beta titanium alloy Ti-15-3

1983 ◽  
Vol 41 ◽  
pp. 264-265
Author(s):  
Y. L. Chen ◽  
S. Fujlshiro
Keyword(s):  
Low Cost ◽  
High Strength ◽  
Alpha Phase ◽  
Thick Sheet ◽  
Omega Phase ◽  
Beta Titanium Alloy ◽  
Beta Titanium ◽  
Beta Matrix ◽  
Metastable Beta ◽  
Very High

Metastable beta titanium alloys have been known to have numerous advantages such as cold formability, high strength, good fracture resistance, deep hardenability, and cost effectiveness. Very high strength is obtainable by precipitation of the hexagonal alpha phase in a bcc beta matrix in these alloys. Precipitation hardening in the metastable beta alloys may also result from the formation of transition phases such as omega phase. Ti-15-3 (Ti-15V- 3Cr-3Al-3Sn) has been developed recently by TIMET and USAF for low cost sheet metal applications. The purpose of the present study was to examine the aging characteristics in this alloy.The composition of the as-received material is: 14.7 V, 3.14 Cr, 3.05 Al, 2.26 Sn, and 0.145 Fe. The beta transus temperature as determined by optical metallographic method was about 770°C. Specimen coupons were prepared from a mill-annealed 1.2 mm thick sheet, and solution treated at 827°C for 2 hr in argon, then water quenched. Aging was also done in argon at temperatures ranging from 316 to 616°C for various times.

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