C700 - Radio System Development Platform


 

Overview

The C700 system constitutes an architecture of the primary blocks building any radio system. Users build their systems on the C700 base unit which is responsible for synchronization, power management, data communication and mechanical fixation of other blocks. With a bus speed of 700mbps, communication takes place between modules and the base unit. Modules are divided in two categories:

 

Basic Modules

  • Synch module provides synchronization & timing information on the whole system.
  • Control modules provide controller or external communication to external host.
  • PLL modules provide highly stable RF local oscillator to other system modules.

Innovation Modules

  • VSM modules vector (digital) signal generator/transmitter.
  • VSD modules vector (digital) signal demodulator/receiver.
  • UDC modules front end with up/down conversion.

Modules are user accessible to allow easy debugging and to enable user insertion of hardware in the loop. Innovatiion modules are programmable to redefine its functionality and involve user code as a block in the system. In any configuration; C700 can be used as a standalone system(using integrated controller), driven by an external host or employed as a subsystem in more complex systems.

Development, Prototyping & Innovation

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 industries standard simulation tools, design environments and community-maintained open source projects boosted by thousands of innovators around the world.

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.

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 mon-machine interface for standalone operation, or to control the system from an external local or remote host.

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
  • 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 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

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

Product Video

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

Multiple Input Multiple Output (MIMO) Implementation and Test setup

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 4x4 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 fulfill 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.

C700 Platform

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.

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.

In figure 2, C700 platform is structured in a 4x4 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.

Figure 1, MIMO link concept

Figure 2, C700 system structure for 4*4 MIMO

Technical Specifications

please refer to C700 data sheet for more details.

General Specification

Frequency Range
10MHz to 2.7/6/8/12/18 GHz (Refer to different modules specs in C700 datasheet)
Frequency Accuracy
1x10-7(Warm up time 1 minute)
Frequency Resolution
100KHz(1Hz with VSM or VSD modules)
Number of channels
Scalable from 1 to 1000
IQ resolution
16bits
Real Time Bandwidth
(16 bits resolution)
40MHz/Channel (more bandwidth is achievable through channel aggregation)
Bus Speed(within single chassis)
700Mbps Consult SpectraTronix for Cluster Configurations
Number of Slot/Chassis
5,8,16,32
Basic Modules(one of each is mandatory)
Controller, Synchronization and PLL
Innovation Modules
VSM Vector Signal Generator/ Transmitter, VSD Vector Signal Demodulator/Receiver, and UDC Up/Down Converter
Reference Signals
10MHz IN, 10MHz OUT
Phase Coherence Capabilities
Shared Clock & LO
Power Supply
9-18 VDC(Optional AC Power Supply Integrated inSystem Housing)
System Housing Cooling(Optional)
Forced Air
Operating Temperature
+0° C to +50° C

RF Specs(Generator/ Transmitter Modules)

Phase Noise
-107 dBc(1Hz) @ 10KHz from Carrier, 1GHz
Amplitude Accuracy
<0.5 dB(Typ. 0.2dB)
Frequency Switching Speed
PLL1: <0.25ms (full band)
VSM : <10 us(within 320MHz band)
PLL, PLL3 and PLL4: <1ms(within 1GHz band)
Continuous Sweep Modules
Sweep Range: Full band
Sweep time:1GHz/ms
RF Output Power
-37 dBm to -7dBm. Overrange-87dBm to -7dBm
(Optional Amplifiers/Attenuators Available)

RF Specs(Demodulator/Receiver Modules)

Max. RF input level
>12dBm
SFDR (Spurious Free Dynamic Range)
>70dB
Sensitivity
<-90 dBm (Optional -140dB.Refer to UDC Modules Specifications)
Accuracy
<0.5 dB (Typ. 0.2dB)
Image Rejection
>40dB (Optional 80dB.Refer to UDC Modules Specifications)
Physical Dimensions
Refer to Detailed Datasheet for Modules and Housing Information
ROHS
All C700 Components are ROHS Compliant

Success! Request Sent!

Thank you for your query, we will get back to you as soon as possible.
Please check your mails regularly.

Failed! Request cannot be sent!

Sorry, there is problem with query, please try again later

Login using your email on Scientech

Show

Forgot your password?

Register your new account on Scientech

Show

Lost your password? Please enter your email address. You will receive a link to create a new password.

Error message here!

Back to log-in

Close