Engineering Services

Technovative Applications has the in-house engineering staff to support customers across a broad band of engineering specialties.  We maintain a full capability to design components, subsystems and turnkey electronics systems.  Our specialists’ fields of expertise include: digital electronics, electrical power systems, RF, software and mechanical design.  All our senior staff members have decades of experience in the design and development of harsh environment, aerospace electronics systems.  Projects undertaken range from radars, satellite communications systems, hardened/miniaturized transceivers, active munitions electronics, digital communications/control systems,  and mechanical mobility solutions.  We work directly as prime contractors to the US government, as well as subcontractors for aerospace OEM’s.  We understand how to design a system to operate reliably in ground, airborne or naval environments. We specialize in applying commercial off-the-shelf components and manufacturing processes to these older systems for affordability, while providing packaging to withstand harsh military operating environments.

Some of the tools and processes we use in our engineering design and services work are discussed below.

Contents:

Software Development

Radar System Simulations

RF Simulation Capabilities

CAD/CAE Capabilities

Software Development

Technovative Applications develops all of our software in-house.  Our software engineers are degreed, highly experienced professionals who participate in the design process from the individual circuits on up. This relationship between hardware and software is something TA takes pride in, allowing our engineers to seamlessly integrate, for example, our antennas with the code driving them to provide cost-effective solutions for our customers.

Technovative Applications is a devoted follower of the open source movement in software.  We constantly strive to use open source code and make our own code open where possible.  Using open systems allows quick maintenance and virtually bug-free code, while keeping our software compliant with the latest standards. Our radar systems run a modified version of the Linux kernel, which allows us to retain the legendary interoperability of the world’s largest open OS, while tailoring complex tasks such as memory management and hardware I/O to our needs.  We also use Java in our highest echelons of code, giving our largest software systems platform independence and modular structure, again delivering on low delivery time and cost. Technovative Applications uses Subversion as our source code configuration management repository.

Our software runs on a variety of components within our radar systems. Our most advanced systems are controlled by a centralized CPU, called the Radar Control Computer (RCC). This CPU is traditionally a state-of-the-art chip placed into a mil-spec card built by an outside supplier.  These cards are then put into our vibration-insulated, water or air-cooled line replaceable units, where they communicate with the rest of the radar subsystem through high speed I/O interfaces.  The RCC runs our Java and C server code, which allows users to communicate with and control the radar over Gigabit Ethernet.  Closer to the hardware, we run multiple Rabbit micro-processors that perform a multitude of tasks, from antenna calibration to system health monitoring. Rabbit processors are small, inexpensive, low-power and easy to program.  Code is written in a C-like language, and is then uploaded directly into the micro-processors to be run.

Radar System Simulations

Technovative Applications maintains a large number of radar system level simulations to support various design activities.  These range from large scale radar and fire control system event-driven simulations written in Matlab® and Simulink®  used to perform system level trade studies or to simulate the performance of complex systems, down to smaller scale simulations in Matlab®, Microsoft Excel,  or C-code that predict performance or estimate errors.  Because several TA radars are used out in the field at proving ranges, we often collect data to validate our system and subsystem models.  For example, we have shown that our interferometer radars routinely produce angular measurement accuracies within 15% of the theoretical performance limit.

Engagement Details

RF Simulation Capabilities

Technovative Applications utilizes ANSYS HFSS as a microwave circuit analysis tool.   HFSS is one of the more powerful software tools used for our antenna designs.  It is the industry-standard simulation tool for 3D full-wave electromagnetic field simulation, and our RF engineers use it on a daily basis to simulate all RF circuits prior to prototyping.   HFSS provides E- and H-fields, currents, S-parameters and near and far radiated field results.  It is fast and has always proven to give excellent correlation with measured results.  It is an excellent tool for phased array calculations that can quickly provide a full set of antenna patterns for any scan angles. We use HFSS exhaustively to verify and optimize designs as well as performing tolerance analyses.

CAD/CAE Capabilities

Technovative Applications uses a full integrated suite of finite element modeling tools and computer aided design tools.  Our data structures are based upon Dassault Systems SolidWorks.  We link the output of SolidWorks directly into our GibbsCAM manufacturing centers.  SolidWorks is used in all of our mechanical design efforts, from the component level until the final assembly level.  Key components are analyzed by utilizing SolidWorks Simulation finite element analysis.  The types of analysis typically performed are stress analysis, heat transfer, structural dynamics, and kinematics.