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c2-battle-management

joint command and control

Lockheed C2BMC, Palantir Maven, NATO ACCS

SystemTechniques · 19Primitives · 70 c2-battle-management Clock synchronizationdistributed · medium: Estimate a clock's offset from four timestamps, filter out queueing noise, and steer the clock smoothly; NTP gets about a millisecond, PTP with hardware timestamps under a microsecond.›Hot-standby redundancyembedded · medium: A second, always-current controller shadows the primary and takes over within a few cycles of silence; epochs stop the old primary from fighting back.›Label placement collisiongeometry · medium: Place map labels and icons without overlap using a collision grid and prioritiesAssignment problem (Hungarian / Jon…graphs · medium: Optimal one-to-one matching of rows to columns in O(n³) by growing a matching along shortest augmenting paths over dual potentials.›Multi-object trackingmachine-learning · medium: Turn per-frame detections (camera boxes or radar plots) into persistent IDs by predicting each track, gating, assigning and managing track births and deaths.›Object detectionmachine-learning · medium: A network turns an image into scored, classified boxes in one pass; anchor-based, anchor-free and set-prediction heads differ in how they assign labels and remove duplicates.›Data distribution servicenetworking · medium: DDS/RTPS publish-subscribe with discovery, QoS policies (reliability, history, deadline)Kalman filterrobotics · low: Optimal recursive estimator for a linear system with Gaussian noise: fuses a motion model with noisy measurements into a state estimate plus its covariance.›Geodesic distance (haversine, Vince…geometry · low: Shortest-path distance between two lat/lon points on the Earth: haversine on a sphere (about 0.5% error), Vincenty or Karney on the WGS84 ellipsoid (sub-millimetre).›Extended Kalman filterrobotics · low: Kalman filter for nonlinear motion and measurement models: linearize f and h with Jacobians at the current estimate each step. The default estimator in robot navigation.›Data diode unidirectional transferembedded · low: One-way network transfer with FEC and no back channel between safety and IT zonesBitstream serializationgame-networking · low: A bit writer and reader over a byte buffer that stores each field in exactly the bits its range needs: booleans in 1 bit, bounded integers in ceil(log2(span+1)) bits.›Map projectionsgeometry · low: Web Mercator, UTM and equal-area projections, datums and coordinate transformsMap tile pyramidgeometry · low: Z/x/y tile pyramids, quadkeys and overviews for multi-resolution maps and imageryTdl message translationnetworking · low: Translate between bit-packed tactical data link messages (Link 16 J-series, VMF) via field-level mapping, scaling and unit conversionAuthorization models (RBAC, ABAC, R…security · low: How to decide who may do what to which object; roles for coarse rules, relationships for sharing, and checks on every object.›Tdma schedulingsignal-processing · low: Time-slot scheduling of shared radio links among users/beamsPID controllerrobotics · low: Drive a measured value to a setpoint with three terms on the error: proportional, integral, derivative. The default feedback loop for motors, heaters, drones and gimbals.›Phase-locked loop (digital)signal-processing · low: Feedback loop that locks a local oscillator to the phase and frequency of an input tone; the core of carrier recovery, clock recovery and GNSS tracking.›Robust statisticsstatistics · low: Location and scale estimates (median, MAD, trimmed mean, Huber M-estimator) that stay correct when a minority of the data is garbage.›Watchdog timerembedded · low: A hardware down-counter that resets the chip unless software proves, in time and in a plausible pattern, that it is still healthy.›d-ary heapdata-structures · low: Array heap with d children per node (d = 4 typical): half the binary heap's depth, siblings in one cache line, faster priority queues.›R-treegeometry · low: A balanced tree of nested bounding boxes that indexes rectangles and points, answering window and nearest-neighbour queries by pruning whole subtrees.›+ 12 more techniques+ 54 more primitives

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