mckero
86ab1b26b7
背景: DeepCW (e04/deepcw-engine) 是基于 CTC 的神经网络 CW 解码模型。本地实测 弱信号解码率显著优于传统 DSP 方案: SNR<0dB 时 CER 16.0% vs ggmorse 52.6%; SNR>=0dB 时两者均接近 0%。模型 400-1200Hz 固定频窗自带定频, 无需频谱峰值 跟踪与噪声门。 改动: - assets/deepcw/model.onnx 15,139,839 字节, 原样收录未作修改 - assets/deepcw/model.onnx.json 模型元数据 (采样率 3200, FFT 256, hop 48, 65 个频段, log1p 归一化, 42 类含 CTC blank) - licenses/DeepCW-AGPL-3.0.txt AGPL-3.0 许可证全文 - licenses/NOTICE.md 来源仓库/作者/取用 commit/SHA-256/ 许可证兼容性说明/复现步骤 - app/build.gradle.kts: androidResources.noCompress += "onnx" 关于 noCompress: ONNX Runtime 通过 mmap 直接读取 assets, 压缩后无法内存映射, createSession 会失败。该配置只在打包 APK 的 app 模块生效, 在 feature 库模块声明无效。 许可证: Look4Sat 为 GPL-3.0-or-later, DeepCW 模型为 AGPL-3.0-only。GPL v3 第 13 条 明确允许两者合并分发。推理完全在本地设备进行, 不通过网络向远程用户提供 模型功能, 故 AGPL 第 13 条的网络源码提供义务不被触发。本仓库公开, 完整 对应源码提供义务已满足。 上游取用 commit: 8e264d243bbd4467bd19f3f28292219405b47e0e 模型 SHA-256: ef120799457bca042d4690944f0faf93268eb4654e7f50f28784ad63bdc1fe02
Look4Sat: Satellite tracker
Radio satellite tracker and pass predictor for Android, inspired by Gpredict
Track satellite passes with ease!
Thanks to Celestrak and SatNOGS you have access to over 9000 active satellites.
You can search the entire database by NORAD Catalog Number or the satellite's name.
Orbital positions and passes are calculated relative to your location.
To get reliable data make sure to set the station position via the app Settings.
The application is built using Kotlin, Coroutines, Jetpack Compose and Navigation.
It is now and always will be completely ad-free and open-source.
Main features:
- Predicting satellite positions and passes for up to 10 days
- Showing the list of currently active and upcoming satellite passes
- Showing the active pass progress, polar trajectory and transceivers info
- Showing the satellite positional data, footprint and ground track on the map
- Custom TLE satellite data import is available via Three Line Element .txt files
- Offline first: calculations are made offline. Weekly TLE data update is recommended.