Source: Defence Blog — May 30, 2026
Via: Defense Blog on LinkedIn
SAM.gov: DARPA-SN-26-88
POC: pinpoint@darpa.mil
Responses due: July 13, 2026
Date: May 29–30, 2026
The Signal
“Russia jams GPS. China jams GPS. And Iran also jams GPS. DARPA just announced it is going to solve that problem from the inside out, by building a navigation sensor so precise it no longer needs GPS at all — using physics that current sensors can’t exploit. Every drone, bomb and missile could benefit.”
DARPA’s Defense Sciences Office published Special Notice DARPA-SN-26-88 on May 29, 2026, announcing the forthcoming PINPOINT program — Precision Inertial Navigation & Positioning On an Integrated Tesseract — managed by Program Manager Sunil Bhave. A formal solicitation with specific technical requirements and performance metrics is expected soon. Industry responses to the preliminary notice are accepted through July 13, 2026.
What PINPOINT Is
PINPOINT is a DARPA Defense Sciences Office program to develop revolutionary GPS-independent inertial navigation sensors that break through the decade-long performance plateau of low-cost MEMS (Micro-Electro-Mechanical Systems) inertial measurement units.
| Element | Detail |
|---|---|
| Full name | Precision Inertial Navigation & Positioning On an Integrated Tesseract |
| Solicitation | DARPA-SN-26-88 (Special Notice) |
| Program Manager | Sunil Bhave, DARPA Defense Sciences Office |
| Response deadline | July 13, 2026 |
| Formal solicitation | Forthcoming (expected soon after July 13) |
| Estimated value | $5M–$25M (AI estimate, experimental) |
| NAICS | 541715 — R&D in Physical, Engineering, and Life Sciences |
| Contact | pinpoint@darpa.mil |
The Technical Problem PINPOINT Solves
Why GPS matters — and why it’s a vulnerability:
The Global Positioning System broadcasts precise timing signals from satellites ~20,200 km above Earth. Military systems calculate position by measuring signal travel time from multiple satellites. The system is extraordinarily accurate and has become the backbone of modern warfare: guided missiles, drones, artillery fire control, blue-force tracking — virtually every precision capability the U.S. military fields depends on GPS signals that an adversary can jam.
The fallback — and its limits:
When GPS is jammed or spoofed, military systems fall back on Inertial Measurement Units (IMUs) — devices that measure acceleration and rotation using gyroscopes and accelerometers, allowing a platform to estimate position based on where it started and how it has moved. The problem: IMU errors accumulate over time. A small measurement error compounds with every reading. High-quality fiber-optic or ring-laser gyroscope IMUs can limit drift, but they are large, expensive, and power-hungry — unsuitable for small, cheap, expendable drones.
The MEMS plateau:
Low-cost MEMS IMUs are small enough for a smartphone and cheap enough for a one-way attack drone. But DARPA explicitly identifies that MEMS IMU performance has plateaued for over a decade — and the reason is structural: current designs constrain mechanical structures to operate within their linear regimes, avoiding complex nonlinear behavior.
PINPOINT’s approach:
PINPOINT aims to break that constraint by actively leveraging nonlinear mechanical dynamics, advanced surface materials, and what DARPA calls “complex physical potential wells” to achieve navigation precision that linear design approaches cannot reach.
The name encodes the approach: a tesseract is the four-dimensional equivalent of a cube — a mathematical structure describing how multiple dimensions interact simultaneously. Applied to sensor design, the “integrated tesseract” concept suggests a sensor architecture that operates across multiple physical domains simultaneously rather than treating each measurement axis in isolation.
PINPOINT builds directly on DARPA’s previous HALOVS portfolio — Highly Accelerated Learning of Vibratory Systems — which studied the fundamental physics of vibrating mechanical structures under extreme conditions. PINPOINT translates those theoretical discoveries into deployable sensors.
The Threat Landscape Driving PINPOINT
The operational urgency is visible across multiple active theaters:
| Adversary | GPS Jamming Activity |
|---|---|
| Russia | Extensive jamming infrastructure throughout Ukraine war; persistent interference affecting civilian aviation across Baltic region (Finland, Estonia, Poland) |
| China | Extensive testing and deployment around Taiwan and South China Sea; any Taiwan Strait conflict would involve sustained EW against U.S. navigation systems |
| Iran | Deployed GPS jamming during conflict with Israel and the United States; American pilots and drone operators reported signal interference in Persian Gulf |
“Every battlefield is a GPS-denied environment.” — Jeff Thompson, CEO, Red Cat (late 2025)
This is no longer a theoretical threat. It is the operational baseline.
Why This Matters for PNT and Defense Startups
1. MEMS IMU breakthrough = platform-agnostic GPS independence. If PINPOINT succeeds, the result is a low-cost, small-form-factor inertial sensor that can maintain precision navigation without GPS — deployable on every drone, missile, bomb, and soldier system in the inventory. This is not a niche capability; it is a fundamental enabler.
2. The “tesseract” approach is genuinely novel physics. This is not incremental improvement to existing MEMS architectures. DARPA is explicitly pursuing nonlinear mechanical dynamics that current sensor designs avoid. The physics is different. The manufacturing challenges are different. The team requirements are different.
3. Multidisciplinary teams are required from the outset. DARPA is signaling that single-discipline proposals will not win. Successful teams will need to integrate: fundamental physics (nonlinear dynamics), advanced materials science, precision MEMS manufacturing, and real-time adaptive control systems. This creates partnership opportunities for academic institutions + defense primes + deep-tech startups.
4. The solicitation window is narrow. Responses to the preliminary notice are due July 13, 2026. The formal solicitation will follow shortly. Teams that have not started forming now will be behind.
5. This is the DoD PNT Enterprise Strategy in action. The 2018 DoD PNT Enterprise Strategy explicitly called for multi-source PNT capabilities that do not rely solely on GPS. PINPOINT is a direct execution of that strategy — building the inertial navigation layer that makes GPS-independence operationally viable at scale.
Ecosystem Context
PINPOINT joins a growing DARPA PNT portfolio:
| Program | Approach | Status |
|---|---|---|
| PINPOINT | Nonlinear MEMS inertial navigation | Forthcoming (SN issued May 2026) |
| RoQS (Robust Quantum Sensors) | Quantum sensing for GPS-denied navigation | Phase 1 launched Aug 2025; Q-CTRL, Safran Federal Systems selected |
| ANS (Adaptable Navigation Systems) | Cold-atom interferometry IMU | Ongoing |
| HALOVS | Fundamental physics of vibrating mechanical structures | Precursor to PINPOINT |
The broader GPS-independence ecosystem includes:
- Xona Space Systems — LEO PNT constellation (see Topic 239)
- Q-CTRL — Quantum sensing for navigation (DARPA RoQS awardee)
- Safran Federal Systems — Quantum sensor development (DARPA RoQS awardee)
- Red Cat Holdings — GPS-denied drone navigation (operational)
- Honeywell, Northrop Grumman — High-end fiber-optic gyroscope IMUs (legacy)
Related: DoD PNT Enterprise Strategy — Full Document Wiki
Related: Inside GNSS May/June 2026 — The New PNT Battlespace
SAM.gov: DARPA-SN-26-88