begood Posted February 4, 2012 Report Posted February 4, 2012 Andrew built a DIY GPS receiver with an accuracy of ~25m :A homemade GPS receiver built from the ground up using discrete components and featuring a limiting IF, followed by 1-bit ADC ahead of DSP signal processing in a Xilinx Spartan 3 FPGA. Fast FFT-based search and navigational solutions are computed by “C” code on a Windows PCHe provided the FPGA Verilog source code, as well as lots of links for anyone interested in this subject. Via the forum. This entry was posted in DIY and tagged GPS receiver. Quote
Acidripp Posted February 4, 2012 Report Posted February 4, 2012 cred ca cel mai ok era sa-l postezi la electronica, oricum, super articolul.... Quote
takko Posted February 5, 2012 Report Posted February 5, 2012 Problema e ca ce are el acolo il folosesc intr-un spatiu de 2x 2 cm si acuratete de +-5 m. Quote
firewind Posted February 6, 2012 Report Posted February 6, 2012 Problema e ca ce are el acolo il folosesc intr-un spatiu de 2x 2 cm si acuratete de +-5 m.Exista limitari hardware, la GPS-uri comerciale, privind precizia pozitionarii, numarul de masurari/secunda, atitudinea, viteza de deplasare, pentru a preveni fabricatia de rachete inteligente care sa foloseasca la sistemul de navigatie asemenea device-uri.Aici sunt incluse dispozitive "home-made" cu raza de actiune de cateva zeci de km. Quote
