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High Precision Radar Capture
The analogue video inputs are captured at up to 125 MHz using high precision analogue to digital converters at 12-bit resolution. The captured video can be optionally down-sampled to reduce the data rate before transfer across XMC, using four lanes to provide exceptional transfer rates.
On the host computer, drivers and a board-support library for Windows and Linux is available. Additionally, the SPx software suite is available to provide a full complement of radar processing functions including scan conversion and target tracking.
Dual-stream Functionality
The HPx-450 is available in single or dual-stream variants. The dual-stream channels may be used in a number of ways:
Dual sampling of one radar video at different rates – typically, this might be higher sampling for short ranges to get maximum close-in detail, with lower sampling across the full radar range to give maximum coverage.
Dual redundant mode – software-controlled automatic failover from one input channel to the other in the event of loss of trigger, ACP or ARP signal.
Dual independent radars – simultaneous, independent capture of two separate radars.
Supports Most Radar Input Signals
The HPx-450 accepts radar video, trigger and azimuth signals in the form of ACP/ARP or parallel data.
A wide variety of signal types and input voltages are supported, allowing the card to support many different radar models. The card provides a capability to detect missing signals in order to provide software alarms for loss of triggers or azimuth data.
Board Support Library & Processing
A board support library is available to provide a C++ class interface to configure the board and capture video, providing direct access to the video samples. Example code is available for Windows and Linux.
Alternatively, Cambridge Pixel’s extensive SPx software is available to provide advanced processing and display of the radar video data. SPx software can be supplied in the form of a library for use in custom application code or as ready-made applications, such as SPx Server, which have built-in support for the HPx-450 card.
The SPx Development Library provides an extensible toolkit of radar specific functions that can be linked together to form a processing chain. Custom functions are easily incorporated into the processing chain, allowing an application to be built from a combination of SPx Development Library functions and user-written processing modules. Cambridge Pixel’s ready-to-run applications offer solutions for both server-side processing and network distribution and for client-side receipt and display.
