Спутник технологический. QBUS 3. [Редактировать]

QBUS 3 это двухюнитовый кубсат, который разработан Stanford University. Спутник создавался в рамках проекта QB50. В качестве полезной нагрузки на нем установлен ион-нейтральный масспектрометр.

Дополнительные наименования

#НаименованияПоиск в новостяхПоиск в документах
1DiscoveryНайтиНайти
2QB50 US03НайтиНайти

Дополнительная классификация

#Наименования
1Тип орбиты - НОО
2Тип оператора(владельца) - государственный
3Страна оператор(владелец) - США
4Страна производитель - США

Технические характеристики

#ХарактеристикаЗначение
1Масса, кг2

Найдено 33 документов по запросу «QBUS 3». [Перейти к поиску]


Дата загрузки: 2017-05-20
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0.09/5
... processors is also attached to a QBus I/O bus [5]. Network access is via a DEQNA device controller [4] connecting the QBus to a 10 megabit/second Ethernet... about 16 megabits/second of QBus bandwidth. The Firefly system kernel... to memory over the server QBus and then issues a packet arrival... packet from memory over the QBus and then transmits it to... that Ethernet transmission time and QBus/controller latency are dominant for... interprocessor interrupt Prod Ethernet controller QBus/Controller transmit latency Transmission time on Ethernet QBus/Controller receive latency General I/O interrupt.../sec Ethernet, 16 megabit/sec QBus transfer, and no cut through... conceivable overlap between Ethernet and Qbus transfers would save about 300...



Дата загрузки: 2017-03-09
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0.07/5
ENEE 245: Digital Circuits & Systems Lab — Lab 6 Verilog & FPGA Advantages ENEE 245: Digital Circuits and Systems Laboratory Lab 6 Objectives The objectives of this laboratory are the following: • To understand just how powerful are the tools of behavioral Verilog and logic synthesis • To get a taste of what real test scenarios look like As mentioned before, Verilog is a powerful language, and writing code that produces hardware makes design and debugging of that hardware far simpler than using a breadboard. As a result, you will find that using Verilog makes is easy to design circuits of incredible complexity. Software design of hardware (i.e., CAD, or computer-aided design) is the only way that modern computer chips could be built. To try to design and test these things by hand would be nothing short of impossible. In this lab you will create several extremely large circuits, including a fairly powerful state machine, using a minimum of Verilog code. The focus will be on the testing and verification processes. Pre-Lab Preparation 64-bit ALU Components Each of your components must be in a separate module, so that you can get separate timing numbers for each. If all code is in the same module, you will not be able to differentiate between components. Design a 64-bit adder, using behavioral Verilog. It should produce a 65-bit result, where the 65th bit represents an overflow scenario. Design a 64-bit subtractor, using behavioral Verilog. It should produce a 65-bit result, where the 65th bit represents an overflow scenario. Design a 64-bit ANDer, using behavioral Verilog. It should produce a 64-bit result, representing the bitwise AND of its two input values. Table of Linear Feedback Shift Registers Design a 64-bit ORer, using behavioral Verilog. It should produce a 64-bit result, representing the bitwise OR of its two input values. Roy Ward, Tim Molteno⇤ If done right, these modules should be relatively small; the adder and subtractor in particular can be October 26, 2007 written in just a few lines of code. Linear Feedback Shift Register a table of maximum-cycle Feedback Shift Register Design a 64-bitHere linearisfeedback shift register, usingLinear behavioral Verilog. This should(LFSR) be clocked on the taps. The bit numbering starts from n . . . 1 with n being the input bit and 1 the rising edge of a clock input. A 64-bit LFSR has taps at bits 64, 63, 61, and 60. For instance, here is output bit. Figure 1 shows an 8-stage maximum-cycle LFSR. LFSR-2 refers to an 8-bit Galois LFSR with taps at bits 8, 6, 5, and 4: two tap LFSRs, LFSR-4 to LFSRs. Blanks indicate no solution exists. 8 7 6 5 4 3 2 1 Figure 1: An 8-stage Galois LFSR with cycle size 255. This LFSR has taps at positions 8,6,5 and 4.



Дата загрузки: 2017-03-10
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0.1/5
ENEE 245: Digital Circuits & Systems Lab — Lab 6 Verilog & FPGA Advantages ENEE 245: Digital Circuits and Systems Laboratory, Fall 2014 Lab 6 Objectives The objectives of this laboratory are the following: • To understand just how powerful are the tools of behavioral Verilog and logic synthesis • To get a taste of what real test scenarios look like As mentioned before, Verilog is a powerful language, and writing code that produces hardware makes design and debugging of that hardware far simpler than using a breadboard. As a result, you will find that using Verilog makes is easy to design circuits of incredible complexity. Software design of hardware (i.e., CAD, or computer-aided design) is the only way that modern computer chips could be built. To try to design and test these things by hand would be nothing short of impossible. In this lab you will create several extremely large circuits, including a fairly powerful state machine, using a minimum of Verilog code. The focus will be on the testing and verification processes. Pre-Lab Preparation 64-bit ALU Components Each of your components must be in a separate module, so that you can get separate timing numbers for each. If all code is in the same module, you will not be able to differentiate between components. Design a 64-bit adder, using behavioral Verilog. It should produce a 65-bit result, where the 65th bit represents an overflow scenario. Design a 64-bit subtractor, using behavioral Verilog. It should produce a 65-bit result, where the 65th bit represents an overflow scenario. Design a 64-bit ANDer, using behavioral Verilog. It should produce a 64-bit result, representing the bitwise AND of its two input values. Table of Linear Feedback Shift Registers Design a 64-bit ORer, using behavioral Verilog. It should produce a 64-bit result, representing the bitwise OR of its two input values. Roy Ward, Tim Molteno⇤ If done right, these modules should be relatively small; the adder and subtractor in particular can be October 26, 2007 written in just a few lines of code. Linear Feedback Shift Register a table of maximum-cycle Linear Feedback Shift Register (LFSR) Design a 64-bitHere linearisfeedback shift register, using behavioral Verilog. This should be clocked on the taps. The bit numbering starts from n . . . 1 with n being the input bit and 1 the rising edge of a clock input. A 64-bit LFSR has taps at bits 64, 63, 61, and 60. For instance, here is output bit. Figure 1 shows an 8-stage maximum-cycle LFSR. LFSR-2 refers to an 8-bit Galois LFSR with taps at bits 8, 6, 5, and 4: two tap LFSRs, LFSR-4 to LFSRs. Blanks indicate no solution exists. 8 7 6 5 4 3 2 1 Figure 1: An 8-stage Galois LFSR with cycle size 255. This LFSR has taps at positions 8,6,5 and 4.



Дата загрузки: 2016-11-05
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0.07/5
... GEOSPACE AND ATMOSPHERIC RESEARCH [1 QB50/QBUS 38 Project Description 38 Planned... State College of Utah. • QB50/QBUS – Von Karman Institute (VKI) of... AND ATMOSPHERIC RESEARCH [ 37 QB50/QBUS Project Description QB50 is an... by the National Science Foundation. QBUS efforts began in earnest in... QB50 for consideration to VKI. QBUS was notified that upon review... less than three months. The QBUS team will build four identical... and storage by a CPU). The QBUS team has selected the Mullard... options. Each university on the QBUS team will provide a flight unit... and ITAR compliant shipment. Furthermore, QBUS will procure additional components for... on each of the four QBUS CubeSats can uncover new information... of the 2U CubeSats for QBUS will have a University of Michigan... for longer lifetime. Therefore, the QBUS CubeSats will be flown with... orbit. Each of the proposed QBUS CubeSats is designed to carry... RESEARCH [ 39 Planned Education Currently, QBUS (QB50 US) is a consortium of... significant CubeSat and science experience. QBUS enables students’ science and hands... see the start of the QBUS project, the objective of which...



Дата загрузки: 2016-12-24
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0.09/5
... processors is also attached to a QBus I/O bus [5]. Network access is via a DEQNA device controller [4] connecting the QBus to a 10 megabit/second Ethernet... about 16 megabits/second of QBus bandwidth. The Firefly system kernel... packet from memory over the QBus and then transmits it to... to memory over the server QBus and then issues a packet arrival.../sec Ethernet, 16 megabit/sec QBus transfer, and no cut through... that Ethernet transmission time and QBus/controller latency are dominant for... interprocessor interrupt Prod Ethernet controller QBus/Controller transmit latency Transmission time on Ethernet QBus/Controller receive latency General I/O interrupt... conceivable overlap between Ethernet and Qbus transfers would save about 300...



Дата загрузки: 2017-02-23
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0.1/5
..., preset, qbus);
 input [7:0] dbus;
 input clk;
 input preset;
 output [7:0] qbus;
 reg [7:0] qbus; always @ (posedge clk) begin if (preset)
 begin
 qbus <= dbus;
 end
 else
 begin
 qbus[7] qbus[6] qbus[5] qbus[4] qbus[3] qbus[2] qbus[1] qbus[0] <= <= <= <= <= <= <= <= qbus[0];
 qbus[7];
 qbus[6] ^ qbus[0];
 qbus[5] ^ qbus[0];
 qbus[4] ^ qbus[0];
 qbus[3];
 qbus[2];
 qbus[1];
 end end
 endmodule...



Дата загрузки: 2016-12-24
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0.06/5
... processors is also attached to a QBus I/O bus [4]. Network access is via a DEQNA device controller [5] connecting the QBus to a 10 Mbit/s Ethernet. In... to about 16 Mbits/s of QBus bandwidth. The Firefly system kernel... to memory over the server QBus and then issues a packet arrival... interprocessor interrupt Prod Ethernet controller QBus/Controller transmit latency Transmission time on Ethernet QBus/Controller receive latency General I/O interrupt... assuming 10 Mbit/s Ethernet, 16 M/s QBus transfer, and no cut through... that Ethernet transmission time and QBus/controller latency are dominant for... conceivable overlap between Ethernet and QBus transfers would save about 300...



Дата загрузки: 2016-10-17
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0.08/5
... processors is also attached to a QBus I/O bus [5]. Network access is via a DEQNA device controller [4] connecting the QBus to a 10 megabit/second Ethernet... about 16 megabits/second of QBus bandwidth. The Firefly system kernel... packet from memory over the QBus and then transmits it to... to memory over the server QBus and then issues a packet arrival... interprocessor interrupt Activate Ethernet controller QBus/Controller transmit latency Transmission time on Ethernet QBus/Controller receive latency General I/O interrupt.../second Ethernet, 16 megabit/second QBus transfer, and no cut through... that Ethernet transmission time and QBus/controller latency are dominant for... conceivable overlap between Ethernet and QBUS transfers would save about 300...



Дата загрузки: 2017-06-15
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0.05/5
... эмулятор на кристалле.  QBus. Внутренняя шина ядра.  QBus Interface. Включает переключатель шин, фиксатор, модуль управления, который выбирает QBus bank. us с шинами данных Xa... КБ кэш инструкций с 16 путями.  QBus Bank. Буфер записи с 4 входами.  PIC...



Дата загрузки: 2017-09-24
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0.11/5
...-1 [QB50 CN03] (42722 / 1998-067MB) и QBUS-1 [QB50 US01, Challenger] (42723 / 1998... земной атмосферы предназначен и американский спутник QBUS-1. Его создали в Колорадском университете. Масса... [QB50 TR01] (42736 / 1998-067MR), QBUS-2 [QB50 US02, Atlantis] (42737 / 1998.... Масса 2 кг. Американский исследовательский спутник QBUS-2 создан в Университете Мичигана. Масса аппарата...