A New Domain in Radio System Design & Verification · A New Domain in Radio System Design & Verification. ... • Analog/Digital modulation ... lot of others can be accomplished using

www.ScientechWorld.com

C700A New Domain in RadioSystem 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.



C700

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.

Education is a DelightDevelopment is a Game

Innovation is an Art


C700

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.

• 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.

A system that provides:

Development, &Prototyping

Innovation,


• 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…………

C700


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{ {


SDR Software Architecture

SDR (Software Defined-Radio)


C700System Architecture

Basic modules Innovative modules

Vector Signal Modulator(C700-VSM)

Signal Local Oscillator (C700-PLL)

Synchronizer(C700-SYNC)

Controller/Host Interface(C700-USB)

Vector Signal Demodulator(C700-VSD)

Base Unit(C700-BU)


C700Base 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


C700 Network topology

Data network(700 Mbps)

Sync. Network(50 Mbps)


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)


Data Network (Packet format)


Synch. Network Packet format


C700 Spectra CasingInspired 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.


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


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: <1 × 10- 7

• External reference input and reference output : 10 MHz


C700 Control Modules

•

controller for standalone applications

- Initialization

- Command processing

- Power supply control

• C700-USB2: control the system by an external host

C700-AVR1 : ATxmega32D4 embedded system


Local Oscillator C700-PLLx• High stable RF local oscillators

• Reference frequency stability : 1 × 10- 7

• 0.1 to 6 GHz

- (Optional up to 18 GHz, 1GHz/ms Sweep Rate)

• 2 × LO outputs

• -107 dBc phase noise

• 0.25 ms switching time


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


C700-VSMDual DAC Chip:

•

• 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.

Converts the digital baseband output from FPGA to analog baseband signals through the following,


C700-VSMDual low pass filter

Attenuates images’ output from DAC.


C700-VSMQuadrature Modulator

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


C700-VSMBaseband DC offset cancelation circuit

•

- 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

Cancellation of carrier feed through problem in a 5 ms operation


Vector Signal DemodulatorC700-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


C700 System Specifications


C700-SHSystem Housing

C700 Field

C700 MiniC700 Orchestra


•

• Matlab

• GNURadio

• VHDL

• Other programming languages

• Spectratronix toolbox ; RFLatitude (free)

• Ready-made projects and applications

Labview

C700 Configuration & Programming


Spectratronix™ toolbox RFLatitude


C700 as your own final productThe 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 mon-

machine interface for standalone operation, or to control the system from an

external local or remote host.


C700 Typical ApplicationsResearch and Education of:

•

• 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

MIMO , massive MIMO, and other wireless technologies


C700 Scope of LearningC700 Level-1 experiments•

• 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

SDR basics


C700 Scope of LearningAdvanced 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


C700 Scope of LearningMilitary 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


MIMO Testbed (Development Platform)Based on C700 PlatformABSTRACT

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, will be employed to build a 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.

Multiple-Input Multiple-Output (MIMO)

two C700 systems 4 x 4 MIMO TX and RX stations


MIMO Testbed (Development Platform)Based on C700 PlatformMIMO Channel ModelingModeling 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.


MIMO Testbed (Development Platform)Based on C700 PlatformMIMO Channel ModelingIn 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 synchron i zat ion) . Modu les 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.


C700Test, 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.


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




C700 FMCW Radar (Matlab)






C700 Channel Sounder (Matlab)






SDR Platforms USRP, WARP …….

Disadvantages•

• 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

Limited student engagement in radio architecture


Traditional Test & Measurement Equipment

Disadvantages

•

• 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

Low cost efficiency


In-house custom made setupDisadvantages

•

• Limited performance and functional reliability

• Limited flexibility and versatility

Advantages

• Student engagement

• Cost effective

• Customized identically to the application

Time consuming & daunting in some applications


Remember

•

• 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

C700 is an SDR with high RF performance & multi-channel capabilities


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


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

Ordering Information


RF & Microwave elements

Standard & customized:

• Complete front ends

• LNA (Low noise amplifiers)

• Power amplifiers

• Couplers

• Splitter/combiners

• Filters & Duplexers

• RF Switches

• Antennas



C700 Orchestra

C700 Field

C700 Mini


Thank YouScientech Technologies Pvt. Ltd.94, Electronic Complex, Pardesipura, Indore-452010, India. +91-731-4211100, www.ScientechWorld.com

For more details contact us at : [email protected]

C700 Orchestra

C700 Field

C700 Mini

Documents

A New Domain in Radio System Design & Verification · A New Domain in Radio System Design & Verification. ... • Analog/Digital modulation ... lot of others can be accomplished using