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MidSTAR-1
MidSTAR-1 is an artificial satellite produced by the United States Naval Academy Small Satellite Program. It was sponsored by the United States Department of Defense (DoD) Space Test Program (STP), and was launched on March 9, 2007 at 03:10 UTC, aboard an Atlas V expendable launch vehicle from Cape Canaveral Air Force Station. MidSTAR-1 flew along with FalconSat 3, STPSat 1, and CFESat as secondary payloads; the primary payload was Orbital Express. MidSTAR-1 Mission (USNA-5) MidSTAR is a general-purpose satellite bus capable of supporting a variety of space missions by easily accommodating a wide range of space experiments and instruments. The integration of the experiments with the satellite bus must be accomplished with minimal changes to the satellite bus design. MidSTAR is intended to be a relatively low-cost, quick response platform accommodating small payloads approved by the DoD Space Experiments Review Board (SERB) and awaiting launch through STP. MidSTAR is designe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
MidSTAR-1
MidSTAR-1 is an artificial satellite produced by the United States Naval Academy Small Satellite Program. It was sponsored by the United States Department of Defense (DoD) Space Test Program (STP), and was launched on March 9, 2007 at 03:10 UTC, aboard an Atlas V expendable launch vehicle from Cape Canaveral Air Force Station. MidSTAR-1 flew along with FalconSat 3, STPSat 1, and CFESat as secondary payloads; the primary payload was Orbital Express. MidSTAR-1 Mission (USNA-5) MidSTAR is a general-purpose satellite bus capable of supporting a variety of space missions by easily accommodating a wide range of space experiments and instruments. The integration of the experiments with the satellite bus must be accomplished with minimal changes to the satellite bus design. MidSTAR is intended to be a relatively low-cost, quick response platform accommodating small payloads approved by the DoD Space Experiments Review Board (SERB) and awaiting launch through STP. MidSTAR is designe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Midstar
MidSTAR, a project of the United States Naval Academy (USNA) Small Satellite Program (United States Naval Academy), Small Satellite Program (SSP), is a general-purpose satellite bus capable of supporting a variety of space missions by easily accommodating a wide range of space experiments and instruments. Mission architecture Thbaseline MidSTAR missionincludes a single spacecraft under the command and control of a single satellite ground (SGS) station located at USNA, Annapolis MD. (Lat. 38.98 N, 76.49 W). The ground station forwards downlinked data files to the Principal Investigators via the Internet. Secondary ground control will be available on an as-needed/space-available basis through Naval Postgraduate School (NPS), Monterey CA (36.6 N, 121.89 W). Launch segment for MidSTAR is either the Delta IV or Atlas V EELV. The orbit is tailored to payload requirements; where no requirements exist, the orbit of the primary payload or one of the other secondary payloads is accepted. In o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Configurable Fault Tolerant Processor (CFTP)
The Configurable Fault Tolerant Processor (CFTP), developed by the Space Systems Academic Group at the Naval Postgraduate School, is an experimental payload on board the United States Naval Academy's (USNA) MidSTAR-1 satellite. Midstar-1 was launched into a 492km low Earth orbit (LEO) on March 8, 2007, aboard an Atlas V expendable launch vehicle from Cape Canaveral Air Force Station, along with FalconSat 3, STPSat 1, and CFESat as secondary payloads. The primary payload was Orbital Express. CFTP Purpose The Configurable Fault Tolerant Processor Project aims to demonstrate the feasibility of using Field Programmable Gate Arrays (FPGAs) for spacecraft computer processing by applying various fault tolerance techniques to the designs. CFTP provides a valuable testbed for on-orbit evaluation of various fault tolerant concepts. The use of FPGAs provides added flexibility, allowing on-orbit upgrades and rapid development cycles. Using Commercial off the shelf (COTS) technology a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Space Test Program
The Space Test Program (STP) is the primary provider of spaceflight for the United States Department of Defense (DoD) space science and technology community. STP is managed by a group within the Advanced Systems and Development Directorate, a directorate of the Space and Missile Systems Center of the United States Space Force. STP provides spaceflight via the International Space Station (ISS), piggybacks, secondary payloads and dedicated launch services. Past activities STP has actually been in existence for 50 years as of 2019, with several thousand launches it has been responsible for. For example, the initial experiments that led to the modern Global Positioning System (GPS) satellite constellation were STP-launched projects. 2001 During August 2001, STP conducted two successful activities using the Space Shuttle and ISS. STS-105 delivered and successfully deployed the Materials International Space Station Experiment (MISSE) externally on the ISS. MISSE was a passive mat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
STPSat 1
The Space Test Program (STP) is the primary provider of spaceflight for the United States Department of Defense (DoD) space science and technology community. STP is managed by a group within the Advanced Systems and Development Directorate, a directorate of the Space and Missile Systems Center of the United States Space Force. STP provides spaceflight via the International Space Station (ISS), piggybacks, secondary payloads and dedicated launch services. Past activities STP has actually been in existence for 50 years as of 2019, with several thousand launches it has been responsible for. For example, the initial experiments that led to the modern Global Positioning System (GPS) satellite constellation were STP-launched projects. 2001 During August 2001, STP conducted two successful activities using the Space Shuttle and ISS. STS-105 delivered and successfully deployed the Materials International Space Station Experiment (MISSE) externally on the ISS. MISSE was a passive ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
CFESat
CFESat (Cibola Flight Experiment Satellite) was a satellite that examined radio spectra for ionospheric and lightning studies, using field-programmable gate arrays (FPGAs). As well as science observation, the mission aimed to demonstrate the use of reconfigurable FPGAs to work in the radiation environment of low Earth orbit. The eight satellite payloads were built by Los Alamos National Laboratory, and the bus was built by Surrey Satellite Technology Ltd. CFESat was the fourth experimental satellite project conducted between the National Nuclear Security Administration and NA-22 (the United States Department of Energy's Office of Research and Development), following up on previous space validation experiments performed on the ALEXIS and FORTE satellites. CFESat was launched on an Atlas V rocket from Cape Canaveral on 8 March 2007, alongside Orbital Express, MidSTAR-1 and FalconSAT-3 FalconSAT is the United States Air Force Academy's (USAFA) small satellite engineering program. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
FalconSat 3
FalconSAT is the United States Air Force Academy's (USAFA) small satellite engineering program. Satellites are designed, built, tested, and operated by Academy cadets. The project is administered by the USAFA Space Systems Research Center under the direction of the Department of Astronautics. Most of the cadets who work on the project are pursuing a bachelor of science degree in astronautical engineering, although students from other disciplines (typically electrical engineering, mechanical engineering, or computer science) join the project. Compared to most commercial satellite projects, FalconSAT is considerably lower budget, and follows a very accelerated development cycle. Because of the near total personnel turnover every year (the program is generally a senior cadet project, and graduating cadets must be replaced yearly) it forces the cadet engineers to very quickly learn and become familiar with the satellite systems to which they are assigned. FalconSAT used to have a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Open Source Software
Open-source software (OSS) is computer software that is released under a license in which the copyright holder grants users the rights to use, study, change, and distribute the software and its source code to anyone and for any purpose. Open-source software may be developed in a collaborative public manner. Open-source software is a prominent example of open collaboration, meaning any capable user is able to participate online in development, making the number of possible contributors indefinite. The ability to examine the code facilitates public trust in the software. Open-source software development can bring in diverse perspectives beyond those of a single company. A 2008 report by the Standish Group stated that adoption of open-source software models has resulted in savings of about $60 billion per year for consumers. Open source code can be used for studying and allows capable end users to adapt software to their personal needs in a similar way user scripts a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kilobit
The kilobit is a multiple of the unit bit for digital information or computer storage. The prefix ''kilo-'' (symbol k) is defined in the International System of Units (SI) as a multiplier of 103 (1 thousand), and therefore, :1 kilobit = = 1000 bits. The kilobit has the unit symbol kbit or kb. Using the common byte size of 8 bits, 1 kbit is equal to 125 bytes. The kilobit is commonly used in the expression of data rates of digital communication circuits as kilobits per second (kbit/s or kb/s), or abbreviated as ''kbps'', as in, for example, ''a 56 kbps PSTN circuit'', or ''a 512 kbit/s broadband Internet connection''. The unit symbol kb (lowercase 'b') is typographically similar to the international standard unit symbol for the kilobyte, i.e. kB (upper case 'B'). The International Electrotechnical Commission (IEC) recommends the symbol bit instead of b. The prefix ''kilo-'' is often used in fields of computer science and information technology wit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Modulation
In electronics and telecommunications, modulation is the process of varying one or more properties of a periodic waveform, called the ''carrier signal'', with a separate signal called the ''modulation signal'' that typically contains information to be transmitted. For example, the modulation signal might be an audio signal representing sound from a microphone, a video signal representing moving images from a video camera, or a digital signal representing a sequence of binary digits, a bitstream from a computer. The carrier is higher in frequency than the modulation signal. In radio communication the modulated carrier is transmitted through space as a radio wave to a radio receiver. Another purpose is to transmit multiple channels of information through a single communication medium, using frequency-division multiplexing (FDM). For example in cable television which uses FDM, many carrier signals, each modulated with a different television channel, are transported through a sing ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mean Shift Key
There are several kinds of mean in mathematics, especially in statistics. Each mean serves to summarize a given group of data, often to better understand the overall value ( magnitude and sign) of a given data set. For a data set, the ''arithmetic mean'', also known as "arithmetic average", is a measure of central tendency of a finite set of numbers: specifically, the sum of the values divided by the number of values. The arithmetic mean of a set of numbers ''x''1, ''x''2, ..., x''n'' is typically denoted using an overhead bar, \bar. If the data set were based on a series of observations obtained by sampling from a statistical population, the arithmetic mean is the '' sample mean'' (\bar) to distinguish it from the mean, or expected value, of the underlying distribution, the '' population mean'' (denoted \mu or \mu_x).Underhill, L.G.; Bradfield d. (1998) ''Introstat'', Juta and Company Ltd.p. 181/ref> Outside probability and statistics, a wide range of other notions of mea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gaussian
Carl Friedrich Gauss (1777–1855) is the eponym of all of the topics listed below. There are over 100 topics all named after this German mathematician and scientist, all in the fields of mathematics, physics, and astronomy. The English eponymous adjective ''Gaussian'' is pronounced . Mathematics Algebra and linear algebra Geometry and differential geometry Number theory Cyclotomic fields *Gaussian period *Gaussian rational *Gauss sum, an exponential sum over Dirichlet characters ** Elliptic Gauss sum, an analog of a Gauss sum **Quadratic Gauss sum Analysis, numerical analysis, vector calculus and calculus of variations Complex analysis and convex analysis *Gauss–Lucas theorem *Gauss's continued fraction, an analytic continued fraction derived from the hypergeometric functions * Gauss's criterion – described oEncyclopedia of Mathematics* Gauss's hypergeometric theorem, an identity on hypergeometric series *Gauss plane Statistics *Gauss–Kuzmi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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