mckero
f4f6ec7db5
用户要求内置完整版模型, 不要量化版。 assets/deepcw/model.onnx: 4,354,478 bytes (int8) -> 15,139,839 bytes (fp32) sha256 ef120799457bca042d4690944f0faf93268eb4654e7f50f28784ad63bdc1fe02, 与上游 commit 8e264d2 发布的原始文件逐字节一致, 零修改。 实测验证(直接对仓库内的 asset 跑推理, 35 个场景): - 信噪比: 干净 ~ -6 dB 全部逐字符正确; -9 dB 起显著劣化 - 速度: 12-45 WPM, 8 档中 7 档零错误 (40 WPM 推理仅 167ms) - 音调: 450-1150 Hz 全窗口 6/6 零错误 - 频率漂移: +20/+60/+150/-300 Hz 全部 4/4 零错误 (卫星多普勒无忧) - QSB 衰落: 6/12 dB 无损, 20 dB 深衰落 CER 23.5% - QRM 同频干扰: 4/4 失败(会把干扰台内容一起解出), 全频段模型固有特性, 实用时依赖电台窄带 CW 滤波器缓解 - fp32 vs int8 准确率打平(5 档中 4 档完全一致); 服务器 x86 上 fp32 推理 耗时约为 int8 的一半(int8 动态量化的反量化开销在无 int8 加速指令的 CPU 上反而更慢)。手机 ARM 侧表现待装机确认。 NOTICE.md / DEEPCW.md / README.md 同步更新: 移除 int8 量化派生的记录与复现 步骤, 改为声明未修改照搬上游。 代价: APK 体积约 59MB -> 70MB, 运行内存峰值上升。此前真机闪退的根因是 R8 缺 -keep ai.onnxruntime.** 规则(已修), 与模型大小无关。
61 lines
3.4 KiB
Markdown
61 lines
3.4 KiB
Markdown
# Look4Sat: Satellite tracker
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[](https://github.com/rt-bishop/Look4Sat/actions/workflows/release.yml)
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[<img src="https://play.google.com/intl/en_gb/badges/static/images/badges/en_badge_web_generic.png" alt="Get it on Google Play" height="80">](https://play.google.com/store/apps/details?id=com.rtbishop.look4sat)
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[<img src="https://fdroid.gitlab.io/artwork/badge/get-it-on.png" alt="Get it on F-Droid" height="80">](https://f-droid.org/packages/com.rtbishop.look4sat/)
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### Radio satellite tracker and pass predictor for Android, inspired by Gpredict
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<p float="left">
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<img src="fastlane/metadata/android/en-US/images/phoneScreenshots/1.png" width="192"/>
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<img src="fastlane/metadata/android/en-US/images/phoneScreenshots/2.png" width="192"/>
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<img src="fastlane/metadata/android/en-US/images/phoneScreenshots/3.png" width="192"/>
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<img src="fastlane/metadata/android/en-US/images/phoneScreenshots/4.png" width="192">
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</p>
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### Track satellite passes with ease!
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Thanks to [Celestrak](https://celestrak.com/) and [SatNOGS](https://satnogs.org/) you have access to over 9000 active satellites.\
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You can search the entire database by NORAD Catalog Number or the satellite's name.
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Orbital positions and passes are calculated relative to your location.\
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To get reliable data make sure to set the station position via the app Settings.
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The application is built using Kotlin, Coroutines, Jetpack Compose and Navigation.\
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It is now and always will be completely ad-free and open-source.
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## Main features:
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* Predicting satellite positions and passes for up to 10 days
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* Showing the list of currently active and upcoming satellite passes
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* Showing the active pass progress, polar trajectory and transceivers info
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* Showing the satellite positional data, footprint and ground track on the map
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* Custom TLE satellite data import is available via Three Line Element .txt files
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* Offline first: calculations are made offline. Weekly TLE data update is recommended.
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## License
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The Look4Sat application code is licensed under the GNU General Public License v3.0.
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The CW decoder in `feature/cw` bundles the [DeepCW](https://github.com/e04/deepcw-engine)
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neural decoding model, licensed under the GNU Affero General Public License v3.0 only
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(AGPL-3.0-only). Because the combined work incorporates an AGPL-3.0 component, the
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combined work is distributed under the
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[GNU Affero General Public License v3.0](LICENSE) — GPL-3.0 Section 13 permits the
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combination, and AGPL-3.0 Section 13 applies to the combined work as a whole.
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Model provenance and attribution are documented in
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[`feature/cw/licenses/NOTICE.md`](feature/cw/licenses/NOTICE.md); the original GPL-3.0
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text is preserved at `feature/cw/licenses/Look4Sat-GPL-3.0.txt`. The CW model runs
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locally on-device and does not provide services over a network.
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## Star History
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<a href="https://www.star-history.com/?repos=rt-bishop%2FLook4Sat&type=timeline&legend=top-left">
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<picture>
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<source media="(prefers-color-scheme: dark)" srcset="https://api.star-history.com/chart?repos=rt-bishop/Look4Sat&type=timeline&theme=dark&legend=top-left" />
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<source media="(prefers-color-scheme: light)" srcset="https://api.star-history.com/chart?repos=rt-bishop/Look4Sat&type=timeline&legend=top-left" />
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<img alt="Star History Chart" src="https://api.star-history.com/chart?repos=rt-bishop/Look4Sat&type=timeline&legend=top-left" />
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</picture>
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</a>
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