H.A.A.R.P HIGH FREQUENCY ACTIVE AURORAL RESEARCH PROGRAM [pic] INTRODUCTION The High Frequency Active Auroral Research Program (H.A.A.R.P) is an ionospheric research program started in 1992 to gather data about the atmosphere and "radio propagation conditions." Their web site (www.haarp.alaska.edu) states that they are monitoring and archiving the naturally occurring variations with the sun’s activities such as sunspots and solar flares. HAARP jointly funded by the US Air Force
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Mars Orbiter Mission The Mars Orbiter Mission (MOM)‚ informally called Mangalyaan ("Mars-craft")‚ is a Mars orbiter that was successfully launched into Earth orbit on 5 November 2013 by the Indian Space Research Organisation (ISRO).The mission is a "technology demonstrator" project aiming to develop the technologies required for design‚ planning‚ management and operations of an interplanetary mission. The Mars Orbiter Mission probe lifted-off from the First Launch Pad at Sriharikota near Chennai
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minimum transmitter power shall be 10 kW. The antenna height is limited to 2‚000 ft. above the average terrain. Class-A stations shall only be allowed in Metro Manila Classand Metro Cebu. Cebu. 1 Classes of FM Broadcast Stations Class-B Stations ClassA Class-B station shall have an authorized transmitter Classpower not exceeding 10 kW and an effective radiated power (ERP) not exceeding 30 kW. The minimum transmitter power shall be 1 kW. The antenna height is limited to 500 ft. above the average
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transmitter : ± 1KHz‚ 5W ± 2dB 121.5 MHz transmitter: ± 3KHz‚ 50mW ± 3dB PERP Homer sweep direction: UP or DOWN Transmit Antenna: Deployable flexible vertical blade Programming: Optical Infra-red link interface phySical SafeLink SOLO: Category 2‚ will not float Size (D x W x L): 36 x 50 x 112mm (1.42” x 1.97” x 4.40”) Weight: 165g (5.8oz) GPS: 50 channel Receive Antenna: Ceramic Patch GPS Self test: Position acquisition test (10 operations allowed) part numBer K91-001-310A SafeLink SOLO PLB (with GPS)
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Wiley‚ 2010. [21] P [22] P. V. Nikitin‚ K. V. S. Rao‚ and S. Lazar‚ “An overview of near field UHF RFID”‚ IEEE RFID conference‚ 2007‚ pp. 167-174 [23] A section”‚ IEEE Antennas and Propagation Society International Symposium‚ Jul. 1997‚ vol. 2‚ pp. 1172 - 1175 [26] L [29] X. Qing‚ C. K. Goh‚ Z. N. Chen‚ “Segmented loop antenna for UHF near-field RFID applications”‚ Electronics Letters‚ vol. 45 ‚ no. 17‚ 2009 [30] L [31] Y. Tanaka et al.‚ ” Change of read range for UHF passive RFID tags in close
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Carrier Phase Tracking of Weak Signals Using Different Receiver Architectures M.G. Petovello‚ C. O’Driscoll and G. Lachapelle Position‚ Location and Navigation (PLAN) Group Department of Geomatics Engineering Schulich School of Engineering University of Calgary lock indicator values and carrier phase-based positioning quality were compared. Unexpectedly‚ the vector-based receiver did not perform very well and more work is needed to understand why this is the case. Of the remaining receivers‚ the
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This article has been accepted for inclusion in a future issue of this journal. Content is final as presented‚ with the exception of pagination. IEEE TRANSACTIONS ON VERY LARGE SCALE INTEGRATION (VLSI) SYSTEMS 1 Synthesis and Array Processor Realization of a 2-D IIR Beam Filter for Wireless Applications Rimesh M. Joshi‚ Student Member‚ IEEE‚ Arjuna Madanayake‚ Member‚ IEEE‚ Jithra Adikari‚ Member‚ IEEE‚ and Len T. Bruton‚ Fellow‚ IEEE Abstract—A broadband digital beamforming algorithm is
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Introduction Over the past 50 years‚ digital signal processing has evolved as a major engineering discipline. The fields of signal processing have grown from the origin of fast Fourier transform and digital filter design to statistical spectral analysis and array processing‚ image‚ audio‚ and multimedia processing‚ and shaped developments in high-performance VLSI signal processor design. Indeed‚ there are few fields that enjoy so many applications—signal processing is everywhere in our lives. When one uses a
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CHAPTER 2 MULTIPLE ACCESS A limited amount of bandwidth is allocated for wireless services. A wireless system is required to accommodate as many users as possible by effectively sharing the limited bandwidth. Therefore‚ in the field of communications‚ the term multiple access could be defined as a means of allowing multiple users to simultaneously share the finite bandwidth with least possible degradation in the performance of the system. There are several techniques how multiple accessing can
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INTRODUCTION In the past‚ doctors have been diagnosing problems associated with the small intestine-such as cancer‚ ulcers and polyps-by using X-rays or exploratory surgery. These techniques are both unpleasant and painful‚ as is surgery. The advancement of our technology today has lead to its effective use and application to the medical field. One effective and purposeful application of the advancement of technology is the process of endoscopy‚ which is used to diagnose and examine the conditions
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