IJK Controls offers a full range of services to clients ranging from Fortune 100 defense suppliers to commercial start-up companies. We are full-service (mechanical, electrical, software, systems) with a core competency in controls, modeling and estimation.


  • Rigid body dynamics, inverse kinematics
  • Structural dynamics, finite element analysis, servo-structure coupling
  • Non-linear dynamics, sensor characterization
  • Experimental modal analysis, experimental transfer function identification
  • Feedback control, analog and digital systems, simulation and modeling
  • Inner loop performance, outer loop guidance algorithms, tracking
  • Inertial stabilization, gimbal systems


  • System configuration based on high-level simulation
  • Control system design
  • Algorithm development and documentation
  • Gimbal design
  • Rapid-prototyping
  • Mechanism design
  • Turn-key board design for controllers/interfaces
  • Embedded software for real-time high bandwidth control
  • Monitor and control design, user interface design

System Engineering

  • Requirements definition, specification development
  • Specification flow-down based on model/simulation
  • System configuration
  • Error budgets, sensitivity analysis
  • Component specification
  • Supply-chain development, source selection


  • System identification for new dynamics
  • Performance testing
  • Software verification
  • Software-in-the-loop testing
  • Hardware-in-the-loop testing
  • Production test setup
  • Field service, trouble-shooting including urgent response
  • Motion table (rate table) testing

Business Strategy

  • Proposal generation, concept development
  • Concept evaluation, due diligence
  • Competitive assessments


We offer on-site training and can tailor courses to your product line or market.

  • Control with feedback and feedforward
  • Kinematics
  • Rigid-Body Dynamics (Kane's method)
  • Line-of-Sight Control for Optical Systems
  • Line-of-Sight Control for RF Systems
  • Stabilization, Pointing and Tracking
  • Satcom-on-the-move Systems

IJK Controls offers broad services in control system design and analysis. In addition, we have specialized expertise in pointing, stabilization, tracking, structural dynamics, kinematics, rigid-body dynamics, and mechanism analysis. We have extensive experience with stabilized optical and RF systems, including communication and imaging systems.