{"id":11267,"date":"2023-10-28T04:51:55","date_gmt":"2023-10-28T10:51:55","guid":{"rendered":"http:\/\/play.fallows.ca\/wp\/?p=11267"},"modified":"2023-10-26T16:17:42","modified_gmt":"2023-10-26T22:17:42","slug":"sdr-code-working-with-perseus-radio","status":"publish","type":"post","link":"https:\/\/play.fallows.ca\/wp\/projects\/software-projects\/sdr-code-working-with-perseus-radio\/","title":{"rendered":"SDR Code Working with Perseus Radio"},"content":{"rendered":"

\"SDR<\/a><\/p>\n

This week, I got my homebrew SDR code working on a simple testbed. Nothing fancy, but I can receive and demodulate signals. <\/p>\n

It’s always a thrill to design, code and run software that works the way you want. Above, you can see a simple testbed that tunes my Perseus to WWV and turns the data into audio I can listen to.<\/p>\n

You can take a few minutes to watch this video demonstration.<\/a><\/p>\n

As you can see, I am developing this software in several parts. First is a radio driver that connect to the hardware and obtains my data. In this case, I am driving the Perseus, but shortly I will add my dual channel receivers. Second, is an input data queue or processor that passes the data to the third stage, an complete software defined receiver.<\/p>\n

My input data processor will also be responsible for saving and reading multiple channels to\/from storage. I will also use this section to combine channels for modern diversity reception<\/a>.<\/p>\n

The really good news is that I got the SDR code working to filter, level and demodulate signals received from any receiver. So, now I just need to focus on the front end drivers and data manipulation.<\/p>\n

SDR Code Working – My Helpers<\/h2>\n

All of the heavy lifting is being performed by Intel Integrated Performance Primitives signal processing<\/a>. This free library is amazing and fairly easy to load and use. PortAudio<\/a> comes in handy, as well. All the rest in pure Delphi Community Edition<\/a>.<\/p>\n

As an added twist, I am developing the application in both 32 and 64 bit Windows concurrently.<\/p>\n

My next step is to develop a driver for RSPduo with its USB connectivity. Then, I will move on to Afedri over Ethernet. Along the way, I need to write code to save multiple channels of IQ data to file. Not sure how to do that, yet!<\/p>\n","protected":false},"excerpt":{"rendered":"

This week, I got my homebrew SDR code working on a simple testbed. Nothing fancy, but I can receive and demodulate signals.<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","_share_on_mastodon":"0"},"categories":[7,115],"tags":[38],"series":[],"class_list":["post-11267","post","type-post","status-publish","format-standard","hentry","category-software-defined-radio","category-software-projects","tag-sdr"],"yoast_head":"\nSDR Code Working with Perseus Radio - Making It Up<\/title>\n<meta name=\"description\" content=\"This week, I got my homebrew SDR code working on a simple testbed. 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