C700 A New Domain in Radio System Design & Verification

Transcription

1 C700 A New Domain in Radio System Design & Verification

2 C700 A New Domain in Radio System Design & Verification A modular SDR (Software-Defined Radio) development and verification platform that allows system designers & researchers smoothly to build their own tailored prototypes or testbeds in a methodological way employing a variety of standardized modules that comprise the functionalities required to architect a real radio system ranging from very simple setup to the most complex requirements.

3 C700 Education is a Delight Development is a Game Innovation is an Art Believing that new generations will be able to make a better world when they enjoy education, we designed the C700 platform to bridge the gap between theory and implementation. After studying the underlying theory, students can fully understand the goals and objectives behind their labs, enjoy implementing real life examples, and eventually experience the pleasure of realizing it. Removing the huge implementation barriers will give students the momentum to innovate new ideas, technologies and will set their abilities free with the right tools to smoothly develop the most advanced RF systems. C700 provides non specialized students arriving from different disciplines other than telecom and electronics provides them the capability to capitalize on their background and realize systems with minimum learning barriers.

4 C700 Innovation, Development, & Prototyping Research and development environment is rich with diversified sets of experiences, skills, backgrounds and knowledge. And since time is their most valuable asset, users share the same target of minimizing development time. C700 platform provides users with the attributes needed to make the best use of their core competencies. A system that provides: Ready-made golden blocks Reliable architecture Comprehensive documentation Open source codes Support and interface to the industry s standard simulation tools, design environments and community-maintained open source projects boosted by thousands of innovators around the world. Knowledge sharing does not only allow leveraging but inspiration and leveraging but inspiration and challenges are important components in such networking.

5 C700 A modular SDR platform enabling designers and researchers to build their own prototypes, testbeds and applications C700 modules comprise all functionalities required to architect a radio system C700 is applicable as Vector Signal Generator (C700_VSG1) Vector Signal Analyzer(C700_VSA1) FMCW Radar 2*2 MIMO system Others

6 { SDR (Software Defined-Radio) What is SDR? An SDR is a class of reconfigurable, reprogrammable,and upgradable radios whose physical layer characteristics can be significantly modified via software changes. SDR typical components { Software-Defined components

7 SDR (Software Defined-Radio) SDR Software Architecture

8 C700 System Architecture Basic modules Synchronizer (C700-SYNC) Innovative modules Vector Signal Modulator (C700-VSM) Controller/ Host Interface (C700-USB) Vector Signal Demodulator (C700-VSD) Signal Local Oscillator (C700-PLL) Base Unit (C700-BU)

9 C700 Base Unit C700-BU Mechanical fixation Power management Data communication Synchronization LVDS signaling technique Input power: 9-18 Vdc Bus DC output : +5V, +3.3V System clock : 50 MHz Bus speed : 700 Mbit/sec (within single chassis) 5 slots, 8 slots, 16 slots and 32 slots

10 C700 Network topology Data network (700 Mbps) Sync. Network (50 Mbps)

11 Data Network (Physical layer) Each module receives 2 differential pairs (LVDS pairs) and transmits 2 differential pairs CLK frequency = 87.5 MHz Data rate = 700 Mbps synchronized to CLK (source synchronous)

12 Data Network (Packet format)

13 Synch. Network Packet format

14 C700 Spectra Casing Inspired by the natural colors in our life, the amazing spectrum of colors infusing our souls with joy and believing that colors inspire innovation, we have built a spectral themes casing as optional where modules are colored according to their category. the provides an easy way to differentiate functionalities and it is another reason for inspiration.

15 C700 Module Structure Every C700 module constitutes two detachable boards, The system board : Controls system modules and provides internal communications The functional board : Performs the module s operation Each module has its own FPGA (Altera EP3C10E144C7N) FPGA handles internal system communications & other user codes for data handling and processing Modules H/W design is available as an open-source for alteration and re-use

16 Synchronizer C700-SYNC Clock, Timing, and internal system reference oscillator to synchronize multiple devices A 50 MHz reference clock for all modules High stable Internal reference OCXO: < External reference input and reference output : 10 MHz

17 C700 Control Modules C700-AVR1 : ATxmega32D4 embedded system controller for standalone applications - Initialization - Command processing - Power supply control C700-USB2: control the system by an external host

18 Local Oscillator C700-PLLx High stable RF local oscillators Reference frequency stability : to 6 GHz - (Optional up to 18 GHz, 1GHz/ms Sweep Rate) 2 LO outputs -107 dbc phase noise 0.25 ms switching time

19 Vector Signal Modulator C700-VSM RF Vector Signal Modulator/Generator 0.4 to 6 GHz RF Output Power : -37 to -7 dbm 40 MHz real time BW 16 bit IQ resolution 1Hz frequency Resolution 10 µs switching speed (within 320 MHz) LO input for phase coherent applications

20 C700-VSM Dual DAC Chip: Converts the digital baseband output from FPGA to analog baseband signals through the following, 8x Interpolation of the 50 MSPS signal to 400 MSPS Complex modulation can be used to shift the output signal center frequency ±160 MHz from the local oscillator input frequency A correction block for amplitude and phase imbalance can be used to decrease the image signal power.

21 C700-VSM Dual low pass filter Attenuates images output from DAC.

22 C700-VSM Quadrature Modulator ADL5375 Quadrature modulation to up-convert the baseband signals (I&Q) to local oscillator frequency.

23 C700-VSM Baseband DC offset cancelation circuit Cancellation of carrier feed through problem in a 5 ms operation - AD8318 power detector: detects the power of the carrier feed through - A low speed MAX11102 ADC : provides a feedback loop to minimize its power. This operation should run every time if local oscillator input frequency is changed

24 Vector Signal Demodulator C700-VSD RF Vector Signal Demodulator/Receiver(and digitizer) 0.4 to 6 GHz 40 MHz real time BW 16 bit IQ resolution 1Hz frequency Resolution 10 us switching speed (within 320 MHz) SFDR : >70dB (80dB typ.) Level Accuracy: <0.5dB (Typ. 0.2dB) Image rejection: > 40dB (optional 80dB. Refer to UDC Up/Down Converter specifications) LO input for phase coherent applications

25 C700 System Specifications

26 C700-SH System Housing C700 Mini C700 Orchestra C700 Field

27 C700 Configuration & Programming Labview Matlab GNURadio VHDL Other programming languages Spectratronix toolbox ; RFLatitude (free) Ready-made projects and applications

28 Spectratronix toolbox RFLatitude

29 C700 as your own final product The architecture of C700 and its modules were engineered to fulfill research needs alongside final product realization requirements. The system modules have high specifications and best in class components yet maintaining small form factor which qualifies the system to be a final standalone working product Physical & environmental conditions were thoroughly considered while designing the C700 to ensure highest performance for field applications. the C700 control layer is as separate layer that allows either autonomous operation with integrated monmachine interface for standalone operation, or to control the system from an external local or remote host.

30 C700 Typical Applications Research and Education of: MIMO, massive MIMO, and other wireless technologies FMCW and similar Radars UWB applications Laboratory Vector Signal Generator/Analyzer Wireless researches for Life science ; medical, bio, Radio Monitoring Radio positioning and Localization DPD (Digital pre-distortion) Researches Multi-channel phase coherent; Direction Finders, Passive Radars Phased array antenna measurements and study Ad-hoc Networks Several other complex radio systems

31 C700 Scope of Learning C700 Level-1 experiments SDR basics Modern wireless system architecture Reception techniques: Super heterodyne vs direct conversion Receiver Spectrum and time domain Wireless communication Analog/Digital modulation Antenna basics RF & microwave elements basics characterization Merits of modern radio systems RADAR types and basics Transmission line basics

32 C700 Scope of Learning Advanced Experiments GSM technology and physical layer WCDMA Technology and Physical layer 4G Technology and Physical layer 5 GH technology, X by X MIMO and massive MIMO Phased arrays and Beam forming Interference & Jamming: effects and counter measures Amplifier linearization Digital pre-distortion Passive Radar FMCW Radar OFDM modulation Wireless channel study Radio positioning and localization UWB (Ultra wide-band) applications Cognitive Radio Phase coherence in modern wireless systems GPS & GNSS basics Wireless energy harvesting

33 C700 Scope of Learning Military Academies/Universities: Additional Experiments in the Defense Area Wireless Jamming techniques & counter measures RADAR Jamming Techniques and counter measures TRANSEC techniques and hooping performance Direction Finding Multi-channel RADAR In addition, Given it s High-Grade Specs, C700 Can be Introduced to any Existing Experiment/Setup serving as any of the following General-Purpose Test & Measurement Equipment Analog/Vector Signal generator Analog/Vector Signal analyzer Vector Network Analyzer

34 MIMO Testbed (Development Platform) Based on C700 Platform ABSTRACT Multiple-Input Multiple-Output (MIMO) is an emerging cost-effective wireless technology that offers significant improvements to data throughput in a non-line-of-sight environment. Investigating properties of actual channels and determining optimal transmission schemes for MIMO has been the subject of research nowadays. One field of this activity concerns the development of suitable signal propagation models to predict MIMO performance under varying physical conditions. This task and a lot of others can be accomplished using what s called MIMO testbed. In this setup, two C700 systems will be employed to build a 4 x 4 MIMO TX and RX stations with a 40 MHz real time bandwidth. Beside a lot of other applications, The C700 platform can be defined as a scalable MIMO system with a common clock and shared local oscillator to fulfil phase coherence requirements. The system can be configured to investigate the performance of MIMO algorithms and channel models and it is easily upgradeable to higher order of channels.

35 MIMO Testbed (Development Platform) Based on C700 Platform MIMO Channel Modeling Modeling complex behavior of a physical MIMO channel can be described mathematically using mathematical computational languages & simulation as an accurate numerical environment. Still real measurements are required using a practical test hardware.this will be performed here using C700 platform that meets the complexity requirements of state-of-the-art MIMO algorithms. As shown in figure 1, the key to MIMO channel modeling is obtaining the channel matrix where the transmitting and receiving frames including noise are described in terms of channel vectors.

36 MIMO Testbed (Development Platform) Based on C700 Platform MIMO Channel Modeling In figure 2, C700 platform is structured in a 4 4 MIMO Transmitter and Receiver stations where IQ Samples are sent to VSM1(Vector Signal Modulator) modules, each module is configured with a unique scrambled Walsh code, and are all triggered to start at the same time(for synchronization). Modules are programmed to continuously repeat a certain frame. At the Receiver side, the VSD2 (Vector Signal demodulator) modules receive a command to start sampling at the same time, and then samples are sent to the PC for processing and producing the channel matrix.

37 C700 Test, Measurement & Automation The C700 platform is designed by seasoned engineers with extensive experience in communication and instrumentation. The RF characteristics of C700 modules outperform many traditional test and measurement devices of the same class. The architecture of the C700 platform allows the use of the system as a general purpose radio test bench or to be optimized as a specialized test instrument. Thanks to the internal bus speed, measurement rate and external interfacing that allow the system to be the heart of your automated test process.

38 6 GHz Vector Signal Generator/Analyzer + Arbitrary Waveform Generator(Labview)

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41 C700 FMCW Radar (Matlab)

42 C700 FMCW Radar (Matlab)

43 C700 FMCW Radar (Matlab)

44 C700 Channel Sounder (Matlab)

45 C700 Channel Sounder (Matlab)

46 C700 Channel Sounder (Matlab)

47 SDR Platforms USRP, WARP. Disadvantages Limited student engagement in radio architecture Limited RF front-end performance Inadequate phase coherence capabilities (MIMO, Passive RADAR,..) Lack of versatility Advantages Internal processing power Variety of high speed PC interfaces Lower price for primitive applications Brand, communities, and market spread

48 Traditional Test & Measurement Equipment Disadvantages Low cost efficiency Not primarily designed for education purpose Limited student engagement in radio architecture Limited versatility Complex setup for multi-channel applications Not relevant for Radio prototyping Advantages High Performance Measurement capabilities Brands

49 In-house custom made setup Disadvantages Time consuming & daunting in some applications Limited performance and functional reliability Limited flexibility and versatility Advantages Student engagement Cost effective Customized identically to the application

50 Remember C700 is an SDR with high RF performance & multi-channel capabilities C700 can be used as an economical high performance Signal Generator & signal/spectrum analyzer SDR means it can generate or receive any type of analog/digital modulation C700 can be used for several military applications as well We offer a customized and complete system

51 What we offer? Offer state-of-the-art wireless laboratories & experiments Real student engagement and space for innovation A Total Solution : End-to-End Training Modern Curriculum

52 Ordering Information *Refer to C700 datasheet for different models **Optional ***For other options & accessories

53 RF & Microwave elements Standard & customized: Complete front ends LNA (Low noise amplifiers) Power amplifiers Couplers Splitter/combiners Filters & Duplexers RF Switches Antennas

54 C700 A New Domain in Radio System Design & Verification C700 Mini C700 Field C700 Orchestra

55 C700 Mini C700 Field C700 Orchestra Thank You For more details contact us at : info@scientech.bz Scientech Technologies Pvt. Ltd. 94, Electronic Complex, Pardesipura, Indore , India ,