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Author	SHA1	Message	Date
Ahmet Inan	40e14d4fdb	added partial_transmit_sequence() helper	2025-08-08 07:24:13 +02:00
Ahmet Inan	e5302188f2	abort search if PAPR is better than 7 dB	2025-08-07 20:26:50 +02:00
Ahmet Inan	b3b8a2703c	check four phases	2025-08-07 14:28:28 +02:00
Ahmet Inan	c9831283a2	doubled number of subsets for pts again	2025-08-07 13:23:20 +02:00
Ahmet Inan	8d526422f6	use four subsets	2025-08-07 13:00:48 +02:00
Ahmet Inan	83ba7eb43d	oops	2025-08-07 12:29:21 +02:00
Ahmet Inan	bfd4d726d6	minor cleanup	2025-08-07 07:27:15 +02:00
Ahmet Inan	64f01501cc	do pts on even and odd subcarrier sets	2025-08-07 00:50:10 +02:00
Ahmet Inan	2c05efe8cd	preparing to play with partial transmit sequence	2025-08-07 00:14:22 +02:00
Ahmet Inan	f816ebbc43	use only one polynomial for scrambling	2025-08-06 23:00:01 +02:00
Ahmet Inan	16b5f7e5c9	minor cleanup	2025-08-06 23:00:01 +02:00
Ahmet Inan	b8dd4de3d8	use a better seed for combinations	2025-08-06 23:00:01 +02:00
Ahmet Inan	cec02bb851	merge head and tail to side (information)	2025-08-06 23:00:01 +02:00
Ahmet Inan	815b65717e	would be nice to get a subchannel SNR figure	2025-08-06 23:00:01 +02:00
Ahmet Inan	40f084bfb5	the guard interval transition is at the middle now	2025-08-06 23:00:01 +02:00
Ahmet Inan	3aa823facd	abort if either head or tail data is damaged	2025-07-27 21:40:34 +02:00
Ahmet Inan	ae22102c0f	it's good enough	2025-07-27 21:37:09 +02:00
Ahmet Inan	fde3bed386	drop differential modes	2025-07-27 16:55:37 +02:00
Ahmet Inan	40fdc7d590	found better parameters via simulation	2025-07-25 21:53:55 +02:00
Ahmet Inan	befca97381	added todo	2025-07-23 13:48:21 +02:00
Ahmet Inan	3d6227a5b7	you can also stream out	2025-07-23 13:48:21 +02:00
Ahmet Inan	92a3ef6c31	added improved example using SoX	2025-07-23 13:48:21 +02:00
Ahmet Inan	505c2f2f47	added payload sizes and bitrates for the new modes	2025-07-21 11:09:38 +02:00
Ahmet Inan	a626441665	made specifying the mode nicer	2025-07-21 11:09:38 +02:00
Ahmet Inan	3d61323f1b	print mode info human readable	2025-07-21 11:06:25 +02:00
Ahmet Inan	47e8aaf662	added code rates 2/3, 3/4 and 5/6 ... scaling factors for erasure probability derived from 1/2-rate code	2025-07-21 11:06:25 +02:00
Ahmet Inan	c1ecc959d1	use at least 16 symbols with normal frames	2025-07-21 11:06:25 +02:00
Ahmet Inan	bedd84afb4	added new modes and bitrates	2025-07-21 11:06:25 +02:00
Ahmet Inan	53acfab11c	added support for base37 encoded call sign	2025-07-18 15:24:27 +02:00
Ahmet Inan	d4c517337c	need higher precision values to make QAM4096 work	2025-07-18 13:18:35 +02:00
Ahmet Inan	c0fedcbc57	added support for QAM4096	2025-07-18 12:52:01 +02:00
Ahmet Inan	cf126158b1	added support for QAM1024	2025-07-18 11:15:04 +02:00
Ahmet Inan	636fcd4f97	added mode table per Rory (VK4SUS)	2025-07-18 10:55:34 +02:00
Ahmet Inan	3765da54ff	restored short and long codes	2025-07-18 09:38:57 +02:00
Ahmet Inan	f1539aacdc	oops	2025-07-18 09:15:44 +02:00
Ahmet Inan	cab6f381c4	updated durations	2025-07-18 07:26:27 +02:00
Ahmet Inan	049dfdb3fa	accommodate preamble symbol in PAPR computations	2025-07-18 07:19:13 +02:00
Ahmet Inan	bca52ea9e8	integrated new preamble	2025-07-18 07:08:26 +02:00
Ahmet Inan	b8fb5e7dd6	added 16 bit CRC	2025-07-17 12:00:44 +02:00
Ahmet Inan	675ee7b024	renamed to make room for new preamble	2025-07-17 11:16:30 +02:00
Ahmet Inan	92a4213b5f	added shuffles for the new code	2025-07-17 10:31:26 +02:00
Ahmet Inan	d11ec2b726	added polar code for new preamble	2025-07-17 10:20:07 +02:00
Ahmet Inan	88e25f1abb	sample rate of 8000 Hz not supported anymore	2025-07-16 12:37:27 +02:00
Ahmet Inan	962a56cd2e	we need a 2400 Hz bandwidth now	2025-07-16 12:24:48 +02:00
Ahmet Inan	1dbc86c66f	use a shorter guard interval ... got rid of 8k and 16k sample rates. we can resample if needed.	2025-07-16 12:00:49 +02:00
Ahmet Inan	78378bb5ac	made gcc happy	2025-07-15 10:24:55 +02:00
Ahmet Inan	7946e8e3bb	let's have at least one 1 second mode	2025-07-13 11:28:24 +02:00
Ahmet Inan	8067d65477	reserve seed value of zero	2025-07-13 11:28:24 +02:00
Ahmet Inan	4b12986dc0	now we can try more combinations on first symbol	2025-07-13 11:28:24 +02:00
Ahmet Inan	34abccdf6e	trimmed modes to free some bits in first symbol	2025-07-13 08:23:34 +02:00