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Faster SS-OCT Options for 12-bit High-Speed Data Acquisition PCIe Card

Continuously Acquiring Up to 200 kHz A-Scan Rate While Maximizing Superior Image Resolution, Performance

Key Features:

-New swept source optical coherence tomography options now support up to 1 GS/s on the 12-bit high-speed data acquisition PCIe card

-Faster image acquisition up to 200 kHz A-scan rate, continuously

-Targeting applications in various non-invasive medical imaging

Keysight High-speed Digitizers Team introduces swept source optical coherence tomography (SS-OCT) application options running at 1 GS/s (-SS2) and 500 MS/s (-SS1). The new options, now available on the U5303A high-speed data acquisition PCIe card, enable OEMs to obtain faster image acquisition by increasing sampling rate and A-scan rate. This allows for non-invasive, high-speed medical imaging in various applications, including ophthalmology, dermatology, gastrointestinal endoscopy, intravascular imaging, oncology and angiography.

This real-time processing solution allows OEMs to develop their SS-OCT engine using the development environment provided, which includes a GUI and C++. Furthermore, the options support “up and down sweep” and “up-sweep only”, including improved trigger accuracy for targeting phase sensitive applications and a FFT phase readout.

The new options also ensure improved SFDR due to new x4 (-SS2) and new x2 (-SS1) oversampling interpolation and guarantee SS-OCT synchronization for A-scan and B-scan trigger, enabling better image clarity and quality. Moreover, swept source maximum analysis depth is independent of the k-clock frequency, allowing adjustment of the maximum depth range being done by changing sample rate. Differences between the k-clock and OCT optical path can be compensated electronically with a programmable delay of ±64 ns.

“These new SS-OCT options enables usage of a fast acquisition running up to 200 kHz scan rate,” said Daniel Aebischer, special OEM applications project manager for digitizers, Keysight’s Communications Solutions Group. “This capability is critical in some applications, such as cardiovascular when the blood stream has to be interrupted in order to take the measurement. Increasing speed is essential even in gastrointestinal, endoscopic applications when continuous acquisition is required to sustain the data flow.”

Both -SS2/-SS1 options are available on the Keysight U5303A, a compact dual-channel ADC card delivering high dynamic range and high effective number of bits (ENOB) for enhanced image quality. As part of the OEMs development tool environment, a dedicated OCT GUI with C++ API and Labview support are provided.

The real-time SS-OCT processing engine was developed using Keysight’s U5340A FPGA development kit. OEMs also can develop their own real-time processing engine. This gives way to reusability from one ADC technology to another.

Our hardware allows OEM to see smaller and deeper by preserving the signal integrity and detecting the smallest signals, whilst our complete offering minimizes risks with ease of integration and reduces time-to-market.

 

Multichannel Streaming and Recording on AXIe Wideband Digital Receiver

Multi-Module Synchronization Capability Increases the Total Number of Streaming and Recording Channels

Key Features:

-New bundle options allow multichannel digital down conversion streaming and recording capability on wideband digital receiver

-Ideal for applications in 5G, Radar and Satellite Communications, and Aerospace & Defense

-Guaranteed recording time, storing all I/Q samples up to full-storage capability of host computer for long-duration frequency post-analysis

Keysight High-Speed Digitizers Team introduces multi-module synchronization for its M9703B AXIe high-speed digitizer/wideband digital receiver – increasing the total number of streaming and recording channels available with the M9703B. The new bundles options (-CB1/-CB2) enable multichannel phase coherent digital down conversion (DDC) which has applications in 5G, Radar and Satellite Communications, and Aerospace & Defense.

 
With up to 320 MHz instantaneous bandwidth (IBW) with tunable intermediate frequency, this high-speed digitizer meets the needs for new technology development in 5G wireless mobile broadband. Used with the recommended host computer configuration, the new options allow guaranteed recording time, storing all I/Q samples for later analysis. A command line software application is included in the bundle for an easy launch and control of the streaming and recording.

As a component of the Keysight solution, the M9703B AXIe high-speed digitizer/wideband digital receiver (bundles -CB1/-CB2) allows customers to quickly characterize the channel behavior in these frequency bands and enables researchers to develop the necessary channel models for designing and validating air-interface alternatives.

“In dense urban RF environments where an interoperability and compatibility challenge may exist, the functionality of the -CB1 and -CB2 options allows users to capture and record a long duration of large frequency bands on multiple phase coherent channels,” said Pierre-François Maistre, R&D project manager for the Wideband Digitizer Components group of Keysight’s CMS Division. “This new capability allows users to characterize all emitters and distortions in the RF environment, including their timing relationships to other RF systems and enable an accurate post data processing, which is used in 5G channel sounding applications.”

For other applications where gapless streaming and recording is not required but there is a need to simultaneously read while acquiring, the new signal processing firmware (-TSR option) enables simultaneous capture and transfer of triggered acquisition data to the host computer.

Expanded Capability of the AXIe Wideband Digital Receivers’ On-Board, Real-Time, Signal Processing

  

Key Features:

-Large Xilinx FPGA for enhanced real-time custom processing capability and implementation of more complex algorithms

-Up to 192 programmable front-panel IOs with 200 ns fixed low latency for real-time immediate control of the surrounding systems

-Large 16 GB onboard memory configuration for faster data throughput

Keysight High-Speed Digitizers Team introduces an enhanced signal processing configuration for its M9703B 12-bit AXIe high-speed digitizer/wideband digital receiver. System architects and engineers can use this new bundle option, which is ideal for OEM and aerospace & defense applications, as a component of a larger system requiring extensive FPGA capabilities and a high number of customizable real-time IO interfaces.

The M9703B-B01 bundle comes pre-configured with the following available options:

-1 GS/s sampling rate (-SR1)

-Input frequency DC to 650 MHz (-F05)

-Large FPGA (-SX3)

-Large acquisition memory (-M16)

-Triggered simultaneous acquisition and readout (-TSR)

-Custom firmware capability (-FDK)

-New IO-EXT interposer mezzanine providing a total of 192 input/output (I/Os)

The U5340A FPGA Development Kit, a standalone software package, allows system architects and engineers to implement their own complex algorithm on-board the M9703B high-speed digitizer as well as to address the I/O to monitor and control their OEM system.

“Thanks to an unprecedented combination of 192 digital I/Os, eight high-speed, 12-bit analog input channels and a scalable open FPGA architecture, the new M9703B-B01 product provides the most versatile and customizable AXIe digitizer platform solution in a compact 1U form factor,” said Pierre-François Maistre, Keysight Communication Measurement Solutions R&D project manager. “By providing wideband solutions that support advanced signal capture, Keysight aims to address more complex challenges in a large variety of aerospace & defense applications that require the treatment of a high amount of data and the control of very large systems.”

High-Fidelity PCIe Digitizers: U5303A Option Enables Broad Set of RF, Wireless Measurements

Keysight High-Speed Digitizers Team announces availability of high-fidelity digitizer application option for its U5303A 12-bit PCIe® digitizer.

The new BB1 application option provides enhanced performance by: 

-compensating the analog-to-digital converter (ADC) and the front-end distortion

-minimizing the interleaves spurs

-reducing the overall noise bandwidth

This results in highly improved and uniform measurement fidelity across the useful bandwidth, which greatly benefits RF and wireless frequency domain measurements. The digitizer’s post processing compensation also delivers better spurious-free dynamic range (SFDR) and intermodulation product (IMx) specifications.  

This high-fidelity digitizer allows customers to select one of the five available settings that best fit their applications, from 1.6 GS/s with 650 MHz instantaneous bandwidth, down to 100 MS/s with 50 MHz instantaneous bandwidth. The achievable data acquisition length is up to 64 MSamples per channel.

“The BB1 option was developed for test applications that require higher dynamic range and excellent SFDR fidelity,” said Thierry Ortelli, Keysight Digitizers R&D manager. “Across the instantaneous bandwidth, high SFDR and linearity performance provide unique capabilities for testing radio frequency integrated circuit components.”

By adding processing capability within the driver, the U5303A ADC card option BB1, coupled with the data analysis software, enables a broad set of RF and wireless measurements, such as error vector magnitude and intermodulation distortion. 

AcqirisMAQS Software Simplifies Multichannel Data Acquisition Systems

Keysight High-Speed Digitizers Team announces a new version of its U1092A AcqirisMAQS Multichannel Acquisition Software. This application, providing unique features for massively multichannel acquisition systems, evolved together with all Keysight’s latest technologies, including the newly introduced M9709A AXIe 8-bit high-speed digitizer.

 

AcqirisMAQS proven software, designed specifically for large multichannel acquisition, enables configuration management as well as visualization of data for hundreds of channels from a single console. The client-server architecture supports remote operation, making it possible for the data acquisition system to be distributed over a LAN. This high-density, compact solution is currently being used for advanced physics experiments, such as hydrodynamics, plasma fusion, particle physics and microwave astronomy.

 

The fully configurable graphical user interface allows engineers and scientists to easily select instruments and measurement channels for the configuration of the acquisition parameters. Acquired data is presented in multiple, powerful display windows for immediate viewing. Each data display window is fully configurable, including the selection of the number of plot areas and axes. Additional display functions provide multi-record overlay, persistence, frequency spectrum (FFT with choice of windowing and selectable section of the signal) and scalar computations on each trace. A special option for triggered single shot experiments adds an advanced configuration manager, digitizer memory protection locking and fail-safe operation.

 

“We were proud to learn that one of our customers routinely uses our product for single-shot experiments with up to 300 channels,” said Levent Erbüke, software quality lead, Keysight Software & Modular Solutions. “This version of AcqirisMAQS adds a new dimension in massively multichannel acquisition systems by adding support for our latest generation of products, such as the M9709A, 32 channels, AXIe high-speed digitizer. With a unique combination of hardware, software and people, Keysight is providing engineers and scientists with research insights never seen before.”

 

Keysight’s multichannel digitizers contain all the timing and synchronization technologies needed to create synchronous sampling across 10s or 100s of channels at a time. For example, a reliable triggering and synchronization is essential to correctly recreate the event or process from captured data. More information about simplifying high-speed multichannel acquisition systems is available at AcqirisMAQS Multichannel Acquisition Software Document Library.

 

Introduction of Continuous Acquisition Stream Capability for PCIe Digitizers

Keysight High-Speed Digitizers Team announces the introduction of continuous simultaneous acquisition and readout (CSR) for its U5303A 12-bit PCIe digitizer. In addition, complete data recording software applications are available, such as digitizer streaming (application option CB0) and digital down-converter streaming (application option CB1).

• CSR Continuous Simultaneous Acquisition and Readout

The U5303A ADC card option CSR allows engineers to perform acquisition and readout simultaneously and in a continuous way. They can use several mechanisms to adapt the acquisition data rate to the targeted application. A gapless acquisition can be sustained at a high data rate due to the PCIe Gen2 x 8 interface. An entire range of new application possibilities are enabled by the CSR option, which includes real time GPU-based data processing systems and data recording systems.

• CB0 Digitizer Streaming

CB0 is an application option which implements a real time digitizer data recorder. Based on the CSR architecture, the CB0 provides a command line interface and an easy to use data viewer. Recording performance up to 1 GB/s are ensured in a specific qualified system.

• CB1 Digital Down-Converter Streaming

CB1 provides the same functionality as CB0 and adds real time digital down-converter functionality. Recording performance up to 180 MHz instantaneous bandwidth are ensured in a specific qualified system. “Numerous test scenarios require gap-free or continuous acquisition of digitized data for minutes, hours or days.” said Keysight’s Giovanni Lucia, R&D engineer for hardware and firmware. “Signal monitoring, software defined radio, atmospheric research, telemetry systems and medical imaging are examples of such applications. We designed the CSR option with the intent of providing an easy and effective implementation to simplify the integration in any OEM system. Furthermore, the CB0 and CB1 applications provide a reliable and cost effective data recording system for customers who want a ready to use solution.”